♪ purple rain purple rain ♪ >> "cbs overnight news" will be right back. ♪ ♪

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in another important story, houston got no break today from relentless storms as rivers and creeks rise so do the bills. and manuel bojorquez is there. >> reporter: for a fourth day, heavy rains kept rivers and creeks swollen, spilling into neighborhoods and paralyzing parts of the city. so no customers can be here right now? >> no. >> sabino hernandez says the flooded parking lot of the restaurant will shut him down for a week. >> how much will you have lost? >> at least $5 f. >> reporter: in a week, $5,000? >> yes, sir, easy. >> reporter: the losses are adding up. close to $2 billion by one estimate. >> i didn't know it would be so bad. >> texas a & m

geography and urban sprawl are proving to be costly combination. >> between 1996 and 2011 this area increased its pavement by 25%. and, the water has snowe where to run except for into people's homes and businesses. >> reporter: brody estimates that roughly every ten square feet of pavement in houston equates to $4,000 in extra flood damage. in 11 years the city's flood costs totaled $3.5 billion in just insured losses. >> reporter: this kind of damage, economic loss will continue? >> it will continue and our data shows it is spiraling upward not just here but nationwide. >> reporter: brody says one solution is to build higher, scott, this apartment complex was built on stilts. though the parking lot its flooded and cars submerged. we are told all the units were spared. >> manuel bojorquez in the thick of it this evening. manuel, thank you. in the race for the republican presidential nomination,

trump now has 68% of the delegates he needs. and he has a new man plotting strategy to get the rest. here is major garrett. >> reporter: meeting in florida members of the republican national committee reject aid move to give individual delegates more clout at this summer's convention. rnc rules committee member randy evans. >> we played this much of the game under one set of the rules. it would be unfair to change the rules in the middle of the game. >> reporter: the rnc fighting back against donald trump's claims that the nomination process is unfair. especially if the fight goes to a contested convention. trump complained the delegates could supersede voting results, for exam pull, trump won all 50 delegates from south carolina but that victory could be short-lived. state chairman matt moore. >> delegates in south carolina are free agents on a second ballot and beyond. can't predict what they will do. >> trump's campaign operative, paul

smooth tensions with the committee. >> creating transparency with elections and how delegates are selected. not for this cycle. but for the next four years. >> so he is going to live within the rules for this campaign as they're written. >> we are winning with these rules. >> manofort told us trump will win the nomination on the first ballot. >> we're convinced we will win on the first ballot. it will be obvious in middle of may and by june 7, we we be the nominee. >> reporter: manofort told us trump expects to sweep all five primaries next tuesday and predicted party regulars will see him as presumptive nominee. scott, ted cruz is bracing for defeats but looking to primaries in may to if possible, derail the trump train. >> might be a new trump campaign with professionals like manofort on board now. major garrett reporting for us now. thank you. >> now to the democrats and what is looking more and more like ai

here is nancy cordes. >> reporter: in scranton, pennsylvania, sanders was still smarting over his 16 point loss next door. >> we just had a democratic primary in new york state the other day. [ crowd boos ] well i share those sentiments. >> reporter: determined to stay in the race. sanders insisted in a fund-raising pitch that we still have a path to the nomination. he would have to win, 60% of all pledged delegates in the 15 states remaining. and new polls show him trailing by 13 in pennsylvania, 25 in maryland, and 9 in connecticut. >> i love coconut cake. >> you do? >> i do. >> reporter: where clinton was today scoring this offbeat complyment at one of our town halls. >> you are very human. i don't care what they say, but you are very human. so, good luck! >> hi, how are you. >> clinton's aides are openly urging sanders to follo

lead. and be a little nicer to the likely nominee than he was in new york. >> but i do question her judgment. >> reporter: a top sanders aide told cbs news they need to look in the mirror. arguing she is the one who went negative first. still, sanders did go easier on clinton today. in fact, barely mentioned her. scott, despite the long odds, his supporters clearly want him to press on giving him $46 million just last month. far more than any other candidate on either side. >> remarkable fund-raising machine. nancy cordes, thank you very much. today, chicago mayor rahm ema u.n. el ordered faster investigations of police shootings and misconduct cases. 45 days in most cases. took 13 months and court order for release of a video showing a chicago skop shooting a black teenager 16 times and killing him. only then was the officer charged with murder.

benefits to all employees killed in acts of terrorism. until now, employees were only entitled to a payout if they had a spouse or children. the change will help families like, that of glen doherty, cia contractor killed when the u.s. compound in benghazi was overrun. the benefits are retroactive to 1983 which will cover the terrorist bombing of u.s. facilities in lebanon. a man who caused day tremendous security scare on a tiny aircraft, was sentenced to day. and, britain celebrates a royal milestone. the "cbs overnight news" will be right back.

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today, vw agreed to buy back or fix nearly half a million diesel vehicles fraudulently rigged to pass emissions tests they should have failed. details of the settlement with the justice department are still being worked out. we learned today that the fbi paid more than a million dollars to a private computer security team that helped it break into an iphone belonging to one of the san bernardino terrorists. the fbi found no links to foreign terrorists on the phone, but director james comey

today it was still worth it. today an ex-postal worker got four months in federal prison for landing a gyrocopter on the ground of the u.s. capital last year. douglas hughes pleaded guilty to flying without a license. hughes who is 62 says he was calling attention to corruption in politics. the olympic torch was lit today from the rays of the sun at the site of the ancient games in greece. the torch will be carried on a 15-week journey to rio de janeiro where the olympic games will be august 5th. great britain says happy birthday to the queen. her story is next.

a first today for elizabeth ii. no british monarch had ever turned 90 before now. mark phillips is in london.

home birthday girl, no hardship when your home is windsor castle. when it is the big 9-0. you are the oldest, longest reigning monarch ever, it calls for a public appearance. an elvis number provided the sound track for a visit to a post office. elvis may be the king of rock 'n' roll, but this monarchy has definitely not left the building. a new stamp shows three kings in waiting and because of the reign says prince william they're well trained. >> it has been a real sort of guiding example of -- of just what, sort of a good monarch can be. >> reporter: for a good monarch the first requirement its to be seen. and if 90-year-old legs will only carry one so far, 94-year-old legs on prince philip. then enter the queen mobile. perhaps her most welcome birthday present.

90 years, 64 of them as queen. but there are two queens. the official dutiful one and the private one. and few understand both better than margaret rhodes, who has been a friend since childhood. >> do you call her on a first name basis. >> by her childhood name, lilibet. >> reporter: lilibet knows she is there to provide one thing above all. continuity. >> we have prime ministers by the dozens. but we have the queen who is always there, you know. does all the thing she's has been to do, putting on a crown and opening parliament. at the same time, she likes to take her dogs for a walk. and, and, talk to the ponies. and pull out weeds as she sees them. you know she is a mixture. >> reporter: elizabeth at 90. that's how he rolls. mark phillips, krks news,

in a moment, prince.

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among the tributes to one of the most innovative artists of modern times was this one from the minnesota twins, bathing their stadium in purple and posting the message, good night, sweet prince. lin-manuel miranda, author and star of "hamilton." step away from your computer, walk around, blast some prince. it's the only thing that has saved my day, it may save yours. >> from paul mccartney, god bless this creative giant. thanks, prince. love paul. >> that's the "cbs evening news" tonight. but we are going to leave you with more of the

prince. it is from one of his greatest performances. halftime at the super bowl in miami, 2007 on cbs, singing "purple rain" in a downpour. ♪ i never meant to cause you any sorrow ♪ ♪ i never meant to cause you any pain ♪ ♪ i only wanted one type to see you laughing baby ♪ >> well i think music, not only should it be entertaining, but it should try to uplift you in some form or fashion. ♪ purple rain purple rain ♪ purple rain purple rain that's all right. come on, y'all! >> i think that's the purpose of music. it is to make light

otherwise dire situation. you know you take music out of your world it's going to be pretty dark. ♪ only want to see you can i play this guitar? ♪ ♪ ♪ ♪ # ♪ ♪ that's the overnight news for this friday. for some of you the news continues. for others just check back with us a little bit later. we'll have the morning news and "cbs this morning." from the broadcast center in new york city, i'm scott pelley.

>> announcer: this is the "cbs overnight news." welcome to the "cbs overnight news." i'm done da dahler. president obama is in london second leg of his international trip started in saudi arabia and will continue to germany. in britain the president will wade into the controversy, of a referendum whether to leave the european union. the white house wants britain to remain part of the european union, fearing it would cripple the economy and undermine western security. security was on the president's mind at his first stoch in saudi arabia where he attended a summit of gulf leaders. at top of the agenda, the battle against isis. margaret brennan reports. >> reporter: while saudi rulers

obama's mideast policy urging them to share the neighborhood with iran their long time enemy and a country that both consider a state sponsor of terrorism. smiles for the cameras disguised an otherwise tense summit with gulf leaders. today's meetings focused on how to counter an explosion of mideast violence that they believe is being fueled by long time faux iran. >> always -- >> reporter: the u.s. brokered nuclear deal also made rulers here deep lely suspicious. saudi leaders feel he jeopardized their status as america's key ally in the middle east. ben rhoads -- >> we understand this is their neighborhood, they're worried about iran and what its agenda is and actions that they have taken. our point is simply that -- that concern with iran should not foreclose the potential for diplomatic engagement if there is ability to resolve

>> reporter: president obama's arrival on wednesday was not met with the usual pomp and ceremony given off to visiting leaders. it also wasn't broadcast on state tv. but u.s. officials denied that was a snub. in a two-hour long meeting yesterday, president obama tried to clear the air with king solomon. but frustrated saudi leaders are looking towards the next u.s. president whether hillary clinton or even donald trump. >> president obama goes from miptd ea mideast politics to british pomp and circumstance. the president and mrs. obama are having lunch with queen elizabeth celebrating her 90th birthday. mark phillips is in london. >> if proof is needed that queens are not like you and me their birthdays are a good place to start. queens get two of them. the real one which for queen elizabeth is today. an official one with all the state trappings which is in june. even for queens, this is the one that counts. ♪ ♪

the choir sang "return to sender" as the queen began her birthday celebrations visiting a post office. elvis may be the king of rock 'n' roll but this monarchy definitely hasn't left the building. as the the new stamps issued for the queen any 90th indicate it will be around for a while yet. one queen and three kings in waiting. according to the second in line, prince william, she has been the best possible teacher. >> i think the queen's duty and her service her tolerance, her commitment to, to others, i think that's all been incredibly important to me and it's been a real, sort of guiding example. of just what sort of a good monarch scan be. -- can be. a 90-year-old monarch on the throne for 64 years. maybe that's why the

♪ the queen has witnessed so many milestones over her long life. a collection of 90 photographs taken over 90 years pulled together in celebration. but this is a private milestone too. and the latest photo of the queen with her youngest grandchildren and her great grandchildren may be the most personal. that's 11-month-old princess charlotte in her arms with william and kate any other child, prince george in the short pants just beside her. people who know her say there are two queens. the public dutiful one and the private one, a country girl at heart, where she can be herself. >> he designed -- >> no one knows that better than margaret rhodes who has known the queen since childhood and still enjoys a private friendship with her. what do you call her, her majesty, or on a first name basis? >> i call her by her childish name.

>> yes. >> does she still respond to lilibet? >> yes. >> reporter: and lilibet at 90 is showing few signs of slowing down. other members of her family now fill in at some official engagements, but she still does plenty of them herself. being there its what the job is all about. >> we have prime ministers by the dozen. we have the queen who is always there. you know? i think that gives people a sense of safety some how almost. you know? and, and i think that -- she herself would -- does all of the things that she is to do, putting on a crown and opening parliament and things like that. but at the same time, she likes to take her dogs for a walk, and, and, talk to the ponies, and pull out weed as she sees them. you know, she is a mixture. >> reporter: federal investigators in southern california have unearthed what is believedo

cross border drug tunnel. the tunnel stretches the length of more than eight football fields from tijuana in mexico to san diego. the discovery led to a $30 million drug bust. carter evans has the story. >> reporter: barely wide enough to squeeze a person through, this unassuming hole transforms into an elaborate underground maze. clear. zig-zagging for half a mile. the cramped compact tunnel stretches across the u.s.-mexico border and investigators say, it is an unprecedented drug smuggling system. >> we believe this to be the longest tunnel that we have discovered in the district to date. >> reporter: as part of an eight-month investigation. federal agents seized more than one ton of cocaine and seven tons of marijuana worth nearly $30 million. the tunnel stretched from tijuana all the way to this industrial park in san diego where the drugs were loaded. only about 3 feet wide, the tunnel was remarkably complex. >>

is really a completely different story. it is equipped with a ventilation system. and a -- commercial large elevator that i would estimate could hold 8 to 10 people. >> reporter: investigators say this is the largest single seizure of cocaine related to a tunnel along the california/mexico border. most of the cocaine smuggled into the u.s. comes in on small boats. and even make shift subra means. we saw this firsthand when we traveled with the coast guard last year following a record $200 million drug bust in the pacific. so far, six people including one u.s. citizen have been arrested in connection with the latest seizure and they face drug trafficking charges. carter evans. the "cbs overnight news" will be right back. ♪ ♪

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reikers island the biggest jail in new york city and one of the most vief leolent in the na. some violence is blamed on corrections officers who work there. nine rikers' officers are on trial right now charged with beating a prisoner three years ago and covering it up. since 2012 more than 50 corrections officers faced charges including assault, falsifying reports and smuggling contraband. bill whitaker took a look behind the prison bars for "60 minutes." >> what you really have was a culture of violence on top of a code of silence. and that is a deadly combination. and i mean that literally. as we found in, in a number of cases, that we have brought in connec w

>> reporter: concerned by the deaths and a stream of alarming reports about reikers island, the u.s. attorney for the southern district of new york, launched a two-year investigation into the jail complex. >> we found in an alarming number of cases, there was no discipline with respect to officers at all even an officer who had dozens of complaints against him and never disciplined once or maybe one time. and that's something that has to change. people have to understand that there are consequence for their actions not just the inmates. but the, the officers as well. >> reporter: how long has this been going on? >> years and years. too long. >> reporter: rikers is a 400 acre island off the tarmac of la guardia airport in the shadows of manhattan skyscrapers. one bridge lead in and out. it is surrounded by its own mote. the inmate population has come down dramatically, from a high of 20,000 to 10,000. but despite the decrease, city data shows violencas

over the last decade. because of the u.s. attorney's findings an unusual collaboratio was formed. berrera, the prosecutor teamed up with plaintiff's lawyers, legal aid, in a class action lawsuit on behalf of a dozen reeke rikers inmates. >> number of facial fracture, traumatic brain injury, broken bones and serious physical injury is just out of control. >> reporter: compounding problems at rikers is increase in the number of mentally ill inmates. >> that just complicates issues relating to violence and issues relating to care and issues relating to discipline the it's a problem. >> reporter: what was captured on this video obtained by 60 minutes helps illustrate what the u.s. attorney is talk about. it has not been seen in public before. bradley ballard, schizophrenic and diabetic brought to rikers in 2013 on charges of violating parole

conviction. in the video, he was observed twisting his shirt into a phallic symbol and making lewd jels chur gestures and taken back to his cell, according to an investigation. >> he was placed in the equivalent of solitary confinement, put him in a cell. locked the cell. basically threw away the key. >> he represents ballard avenue family in a pending wrongful death. a report find ballard was locked in a cell for six days prior to his death and, was denied access to life supporting medications and day after day, officers, supervisors and clinicians walked by observed his deteriorating state but failed to help him. after repeated floodings of ballard's toilet. a maintenance worker turned off the water running into ballard's cell. the report found tha

was laying in his own waste. >> spraying deodorizer. >> reports, correction officers were bringing aerosol cans from home because the stench was so bad coming from the cell. >> here, an inmate who delivered a food tray pulled his shirt up over his nose. the report found the videotape indicated ballard's cell was closely unsanitary. finally on the sixth day, medical workers were called. according to the report, an officer asked ballard if he could get up on his own. "i need help" ballard said. inmate workers carried him out and put him on a gurney. record show, ballard went into cardiac arrest soon after and died hours later. >> they watched him languish for seven days as he died. and they did nothing. it was the functional equivalent of torture. they killed him. >> reporter: the city's

examiner declared ballard's death a homicide according to the commission report and called the medical and custodial treatment from the time he enters rikers so incompetent and inadequate as to shock the conscience. the department of correction issued a statement that it adjusted its practices to ensure that a similar tragedy doesn't happen again. but to this day no criminal charges have been filed against any of the officers, supervisors, or health workers involved. it is impossible to know if anyone stepped forward. but if they did, it wasn't enough to help bradley ballard. >> that's inhumane. in of my opinion. that should never have happened. >> reporter: norman seabrook president of the union that represents the correction officers but not the higher ranking supervisors. we showed him the ballard video. >> who's responsible? >> the supervisor. >> what about your officers? >> the officers follow instruction of the supervisors. >> reporter: in another incid

inmate jose bautista tried to hang himself. arrested on dope mostic charges awaiting trial. he couldn't post the $250 bail. when he jumped up suddenly, officers beat him so severely he suffered a perforated bowel and needed emergency surgery according to case records. bautista's case was one of 129 serious injuries over an 11-month period documented in a revealing report by the new york city department of health and mental hygiene. that was intended for internal use only, but 60 minutes managed to get a copy. the report found 77% of the injuries involved mentally ill inmates and their injuries were severe enough off to require care beyond the capacity of jail medical doctors. >> could take a third of the 77% and say that okay it was the inmates who was just being violent and need nude be subdued. but 77%

the story. that's a problem. >> reporter: dr. daniel seling now in private practice was executive director of mental health at rikers for five years until he left in 2014. is it fair to say that rikers is -- mental institution? >> sure, probably one of the largest mental institutions in the nation if not the largest. >> reporter: can you tell me abut the ca about the case of bradley ballard, what does that say about how things work on rikers. >> that's probably the worst case that i have experienced, been a part of -- that was a -- a case in which all systems failed. >> reporter: seling said the staff of the private medical contractor failed to do the required daily rounds and never informed him about ballard's deep teara

the contract with the firm was not renewed. bradley ballard not the only mentally ill inmate to die in custody in recent years. in 2014, u.s. attorney, filed the first criminal civil rights case in a decade against a rikers officer or supervisor in connection with the poisoning of mentally ill inmamt, jafson etererea, died after ingesting toxic soap in solitary confinement. as seen in the video, a robbery suspect who was also awaiting trial was escorted to a cell where he swallowed the toxic soap given off to him cleaning his cell. his father, ramon, tells us he believes he ate the soap in a desperate effort to get out of solitary confinement. >> my son was screaming. burning of inside. >> he is dying? >> he is dying. >> reporter: ape few hours later according to court documents. correction officer, raymond castro, alerted captain

pendergrass that the inmate needed attention. according to testimony, the captain said don't call me itch you have live, breathing body. only call me itch you need a cell extraction or if you have a dead body. another correction officer, angel lazarte testified as to what happened next. a pharmacy technician on her rounds, said the inmate could die. he then approached pendergrass and pendergrass told him write an injury report. you can see on the tape. he went to look into the inmamtinmam ininmate's cell himself. >> see the full report on cbsnews.com. the "cbs overnight news" will be right back.

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so i get a better clean. voted 2016 product of the year. if it's got to be clean, it's got to be tide. the olympic torch was lit in athens on the way to brazil. site of this year's summer games. they kick off in three months. but as ben tracy reports, the country still has a lot of work to do. ♪ ♪ >> reporter: this video made by brazilian government shows rio as a stunning and energetic city, fit for the olympic gods. ♪ ♪ but nearly seven years after it was chosen to host the summer games there is a new reality in rio. >> when brazil was awarded the games in 2009 it was a stable country. now in the interim it became destablized, the president is facing

will vote whether to impreach the president and several other high ranking politicians are tied to a massive corruption scan d scandal. there are concerns about security. brazil shares a border with ten other countries that experts say terrorists could exploit. >> they see there is opportunity in maybe loose border control, poor governance, corruption. and the islamic state and al qaeda are always looking for those major venues where they can make a very powerful statement. >> reporter: and then there is zika, the world health organization declared it a global health emergency. because it causes serious birth defects. u.s. soccer star hope solo still plans to compete in the games admitted in february she is concerned. >> at some point i do want to start a family. and, i don't want to be worried. i don't want the

>> >> alligators have been breeding near the site of the olympic golf course. and rio's waterways are so contaminated experts say athletes are competing in the equivalent of raw sewage. one athlete believes he got flesh eating bacteria after sailing in rio's waters. the olympic committee says rio is on track to host the games. all but two venues are finished. and after a slow start, ticket sales are finally picking up. >> rio 2016 team is ready to rise to this challenges and to deliver olympic and paraolympic game that will reflect the brazilian warmth, the brazilian hospitality and love for the games. >> reporter: once the games begin it is unlikely we'll see a lot of empty seats in the stand that's because if they don't sell out the tickets the government plans to give the tickets away to local schools. as for the price tag for awful this, the rio

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it will be a couple years, former slave and abolitionist, harriet tubman will replace andrew jackson on the $20 bill. >> reporter: while changes aren't happening overnight. the new designs revealed in 2020 the next, 5, 10, 20 going into circulation in the years after that. they're going to look a lot different than what is inside your wall et right now. >> maryann andersen broke new ground performing on the steps of the lincoln memorial in 1939. born into slavery, harriet tubman became one of america's famous abolitionists. now both will make higstory again. >> this is bigger than a square inch of a bill. the 20, 10, 5. >> last summer, jack lew announce heed would pick a woman to join alexanderam

the $10 bill. after public outcry he decided to go bigger putting tubman on one of america's most used bills. >> showed that young people, old people, at home, at school, were thinking abut this, what democracy means to them. ♪ passionately >> reporter: fans of the broadway smash hit "hamilton" played their part rallying to keep the first treasury secretary in print. you are not denying "hamilton the musical" played some part in all of this? >> i wouldn't exaggerate it. i give a lot of credit to crew of hamilton for bringing american history to life for so many people. >> reporter: sweeping design changes for the three new bills unveiled in 2020 in time to the 100th anniversary of women gaining the right to vote. the 10 rolled out first featuring susan b. anthony and alice paul who marched for women's suffrage on the steps of the treasury in .

abraham lincoln will stay on the front of the 5. on the back, mary ann andersen, eleanor roosevelt and martin luther king jr. commemorating the lincoln memorial. charles rauls is a -- ross. >> keemt one in my wallet. >> reporter: when you will be able to use a tubman 20 at the tubman museum will be up to the next president. >> i'm pretty confident once we announced this. it will take on a life of its own. >> technically the next president could change these plans, but lew hopes it doesn't happen. ultimately up to the federal reserve to decide to when currency goes into circulation. lew tells us he asked the fed to expedite the process. but the real issue with timing here is security. and making sure the new money can't be counterfeited. >> that's the "cbs overnight news" for this friday. for some of you, the news continues. for others, check back with us a little later for the morning

from the broadcast center in new york city. i'm don dahler. ♪ why do we scream at each other this is what it sound like when the doves cry ♪ >> he was music royalty. the death of the artist who will forever be remembered as prince. ♪ purple rain purple rain ♪ also tonight -- flooded texas gets the last thing it needed. more rain. >> how much money do you think you will have lost? >> mm -- a lot, a lot of money. >> a bold prediction from a tough man on a delegate mission. >> certainly by june 7th we think we will be the nominee. and day for a queen. elizabeth reaches a milestone. ♪ happy birthday your majesty

>> announcer: this is the "cbs overnight news." the heavens provided a fitting backdrop for the news. rain fell as word came that prince had died suddenly and unexpectedly at his home near minneapolis. soon the tributes poured in. for one of the most popular recording artists of all time. purple rain alone sold more than 13 million copies. stevie nicks tweeted this is what it sounds like when doves cry. dean reynolds begins our coverage. >> reporter: music fans were drawn to the artist's famous paisley park home and recording studio as news of his death rippled around the world. >> needed for a medical at paisley park. person down, not breathing. >> reporter: 9:43 this morning when emergency services responded to a call from the star's address.

police say prince was found unresponsive inside an elevator while paramedics performed cpr they were unable to revive him. at 10:07 he was pronounced dead at the age of 57. he had been battling illness over the last few weeks, forcing him to cancel two shows this month. ♪ purple rain purple rain >> reporter: he felt well enough to perform a week ago, one of his final big city shows at atlanta's fox theater. on flight home prince's plane was forced to land in illinois where he was treat ford what publicists said was a medical emergency possibly related to the flu. after three hours of treatment at a local hospital he continued the flight home to minnesota. prince was very much minnesota's favorite son. just last saturday, he threw an impromptu party for friend and neighbrs. >> he was just here saturday. he was fine. i just can't believe he's gone. >> things have been open for me because of his music.

he brought people together. >> the impact is -- profound. >> reporter: president obama paid his respects by quoting him. a strong spirit transcends rules, prince once said. and, added the president, nobody's spirit was stronger, bolder or more creative. tributes from fellow artists have set instagram and twitter on fire. from elton john -- the greatest performer i have ever seen. from friend spike lee. i miss my brother. prince was a funny cat. great sense of humor. and from oprah -- the doves really are crying now. >> the police here are currently investigating the cause of death. scott, we are outside prince's residence where people have been coming all day to pay their last respect and to fashion this small tribute to his memory. >> dean reynolds reporting. dean, thank you. the rock 'n' roll hall of fame says that prince "rewrote the rule book forging a synthesis of

black funk and white rock that served as a blueprint for cutting edge music in the 80s." vladamir dutiers has the man and his music. ♪ this its what it sounds like when doves cry ♪ he was a prodigy, icon and provocateur. ♪ nikki >> reporter: earning him the take name, his royal badness, including darling nikki, prompting warning labels on albums for the first time. ♪ when i saw little nikki >> he sang, wrote, produced and was known to shred on the guitar. ♪ a flamboyant artist on stage and off, with a wardrobe and a personality to match. ♪ prince first broke through in the music world in the late 1970s with hits like "i want to be your lo"

♪ little red corvette" 6 >> his music in the '80s forging funk and rock that catapulted the prince of pop to stardom with "little red corvette" in 1999. ♪ tonight i want to party like it's 1999 ♪ >> just another manic monday ♪ >> reporter: he wrote for musicians too, from the bangles to sinead o'connor. ♪ nothing compares to you he won seven grammys during his career and oscar for original score to the film "purple rain." ♪ i only want to see you laughing in the purple rain purple rain ♪ >> joe levy with "rolling stone." >> here is a guy who has a flag in the shape of rp

he is going to plant it on the mountain top. and you are going to follow him. that's a legacy right there. >> reporter: a legacy cemented in 2004 when he was inducted into the rock 'n' roll hall of fame. he talked about one essential thing to make his stardom possible. >> freedom to produce. freedom to play all the instruments on my records. freedom to stay anything i wanted to. ♪ i embarked on a journey more fascinating than i could have ever imagined. i wish all of you the best on this fascinating journey. it ain't over. peace. [ applause ] ♪ >> reporter: hundreds of fans gathered here at new york's apollo theater where he paid in 1993 to pay tribute to the man, myth, legend. for those that came of age in the 80s his music provided sound track to our lives. i can tell you it was a prince song play during this reporter's first kiss. >> vladamir, thank you. >> later we will show you one of prince's most unforgettable

performances. purple rain at the super bowl. ♪ purple rain purple rain >> "cbs overnight news" will be right back. ♪ ♪

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llergy research and education. in another important story, houston got no break today from relentless storms as rivers and creeks rise so do the bills. and manuel bojorquez is there. >> reporter: for a fourth day, heavy rains kept rivers and creeks swollen, spilling into neighborhoods and paralyzing parts of the city. so no customers can be here right now? >> no. >> sabino hernandez says the flooded parking lot of the restaurant will shut him down for a week. >> how much will you have lost? >> at least $5 f. >> reporter: in a week, $5,000? >> yes, sir, easy. >> reporter: the losses are adding up. close to $2 billion by one estimate.

>> i didn't know it would be so bad. >> texas a & m professor says geography and urban sprawl are proving to be costly combination. >> between 1996 and 2011 this area increased its pavement by 25%. and, the water has snowe where to run except for into people's homes and businesses. >> reporter: brody estimates that roughly every ten square feet of pavement in houston equates to $4,000 in extra flood damage. in 11 years the city's flood costs totaled $3.5 billion in just insured losses. >> reporter: this kind of damage, economic loss will continue? >> it will continue and our data shows it is spiraling upward not just here but nationwide. >> reporter: brody says one solution is to build higher, scott, this apartment complex was built on stilts. though the parking lot its flooded and cars submerged. we are told all the units were spared. >> manuel bojorquez in the thick of it this evening. manuel, thank you.

in the race for the republican presidential nomination, front-runner donald trump now has 68% of the delegates he needs. and he has a new man plotting strategy to get the rest. here is major garrett. >> reporter: meeting in florida members of the republican national committee reject aid move to give individual delegates more clout at this summer's convention. rnc rules committee member randy evans. >> we played this much of the game under one set of the rules. it would be unfair to change the rules in the middle of the game. >> reporter: the rnc fighting back against donald trump's claims that the nomination process is unfair. especially if the fight goes to a contested convention. trump complained the delegates could supersede voting results, for example, trump won all 50 delegates from south carolina but that victory could be short-lived. state chairman matt moore. >> delegates in south carolina are free agents on a second ballot and beyond. can't predict what they will do. >> trumpam

smooth tensions with the committee. >> creating transparency with elections and how delegates are selected. not for this cycle. but for the next four years. >> so he is going to live within the rules for this campaign as they're written. >> we are winning with these rules. >> manofort told us trump will win the nomination on the first ballot. >> we're convinced we will win on the first ballot. it will be obvious in middle of may and by june 7, we we be the nominee. >> reporter: manofort told us trump expects to sweep all five primaries next tuesday and predicted party regulars will see him as presumptive nominee. scott, ted cruz is bracing for defeats but looking to primaries in may to if possible, derail the trump train. >> might be a new trump campaign with professionals like manofort on board now. major garrett reporting for us w. thank you. >> now to the democrats and what is looking more and more like

sanders. here is nancy cordes. >> reporter: in scranton, pennsylvania, sanders was still smarting over his 16 point loss next door. >> we just had a democratic primary in new york state the other day. [ crowd boos ] well i share those sentiments. >> reporter: determined to stay in the race. sanders insisted in a fund-raising pitch that we still have a path to the nomination. he would have to win, 60% of all pledged delegates in the 15 states remaining. and new polls show him trailing by 13 in pennsylvania, 25 in maryland, and 9 in connecticut. >> i love coconut cake. >> you do? >> i do. >> reporter: where clinton was today scoring this offbeat complyment at one of our town halls. >> you are very human. i don't care what they say, but you are very human. so, good luck! >> hi, how are you. >> clinton's aides are openl

urging sanders to follow that lead. and be a little nicer to the likely nominee than he was in new york. >> but i do question her judgment. >> reporter: a top sanders aide told cbs news they need to look in the mirror. arguing she is the one who went negative first. still, sanders did go easier on clinton today. in fact, barely mentioned her. scott, despite the long odds, his supporters clearly want him to press on giving him $46 million just last month. far more than any other candidate on either side. >> remarkable fund-raising machine. nancy cordes, thank you very much. today, chicago mayor rahm emanel ordered faster investigations of police shootings and misconduct cases. 45 days int

for release of a video showing a chicago skop shooting a black teenager 16 times and killing him. only then was the officer charged with murder. the cia is expanding death benefits to all employees killed in acts of terrorism. until now, employees were only entitled to a payout if they had a spouse or children. the change will help families like, that of glen doherty, cia contractor killed when the u.s. compound in benghazi was overrun. the benefits are retroactive to 1983 which will cover the terrorist bombing of u.s. facilities in lebanon. a man who caused day tremendous security scare on a tiny aircraft, was sentenced to day. and, britain celebrates a royal milestone. the "cbs overnight news" will be right back.

today, vw agreed to buy back or fix nearly half a million diesel vehicles fraudulently rigged to pass emissions tests they should have failed. details of the settlement with the justice department are still being worked out. we learned today that the fbi paid more than a million dollars to a private computer security team that helped it break into an iphone belonging to one of the san bernardino terrorists. the fbi found no links to foreign terrorists on the phone,

but director james comey said today it was still worth it. today an ex-postal worker got four months in federal prison for landing a gyrocopter on the ground of the u.s. capital last year. douglas hughes pleaded guilty to flying without a license. hughes who is 62 says he was calling attention to corruption in politics. the olympic torch was lit today from the rays of the sun at the site of the ancient games in greece. the torch will be carried on a 15-week journey to rio de janeiro where the olympic games will be august 5th. great britain says happy birthday to the queen. her story is next.

a first today for elizabeth ii. no british monarch had ever turned 90 before now. mark phillips is in london. the queen is normally a stay at home birthday girl, no hardship

when your home is windsor castle. when it is the big 9-0. you are the oldest, longest reigning monarch ever, it calls for a public appearance. an elvis number provided the sound track for a visit to a post office. elvis may be the king of rock 'n' roll, but this monarchy has definitely not left the building. a new stamp shows three kings in waiting and because of the reign says prince william they're well trained. >> it has been a real sort of guiding example of -- of just what, sort of a good monarch can be. >> reporter: for a good monarch the first requirement its to be seen. and if 90-year-old legs will only carry one so far, 94-year-old legs on prince philip. then enter the queen mobile. perhaps her most welcome birthday present.

90 years, 64 of them as queen. but there are two queens. the official dutiful one and the private one. and few understand both better than margaret rhodes, who has been a friend since childhood. >> do you call her on a first name basis. >> by her childhood name, lilibet. >> reporter: lilibet knows she is there to provide one thing above all. continuity. >> we have prime ministers by the dozens. but we have the queen who is always there, you know. does all the thing she's has been to do, putting on a crown and opening parliament. at the same time, she likes to take her dogs for a walk. and, and, talk to the ponies. and pull out weeds as she sees them. you know she is a mixture. >> reporter: elizabeth at 90. that's how he rolls. mark phillips, cbs news, windsor. in a moment, prince.

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among the tributes to one of the most innovative artists of modern times was this one from the minnesota twins, bathing their stadium in purple and posting the message, good night, sweet prince. lin-manuel miranda, author and star of "hamilton." step away from your computer, walk around, blast some prince. it's the only thing that has saved my day, it may save yours. >> from paul mccartney, god bless this creative giant. thanks, prince. love paul. >> that's the "cbs evening news" tonight. but we are going to leave you

with more of the music of prince. it is from one of his greatest performances. halftime at the super bowl in miami, 2007 on cbs, singing "purple rain" in a downpour. ♪ i never meant to cause you any sorrow ♪ ♪ i never meant to cause you any pain ♪ ♪ i only wanted one type to see you laughing baby ♪ >> well i think music, not only should it be entertaining, but it should try to uplift you in some form or fashion. ♪ purple rain purple rain ♪ purple rain purple rain that's all right. come on, y'all! >> i think that's the purpose of music. it is to make light of, of an

you know you take music out of your world it's going to be pretty dark. ♪ only want to see you can i play this guitar? ♪ ♪ ♪ ♪ ♪ that's the overnight news for this friday. for some of you the news continues. for others just check back with us a little bit later. we'll have the morning news and "cbs this morning." from the broadcast center in new york city, i'm scott pelley.

>> announcer: this is the "cbs overnight news." welcome to the "cbs overnight news." i'm don dahler. president obama is in london second leg of his international trip started in saudi arabia and will continue to germany. in britain the president will wade into the controversy, of a referendum whether to leave the european union. the white house wants britain to remain part of the european union, fearing it would cripple the economy and undermine western security. security was on the president's mind at his first stoch in saudi arabia where he attended a summit of gulf leaders. at top of the agenda, the battle against isis. margaret brennan reports. >> reporter: while saudi rulers say they're

president obama's mideast policy urging them to share the neighborhood with iran their long time enemy and a country that both consider a state sponsor of terrorism. smiles for the cameras disguised an otherwise tense summit with gulf leaders. today's meetings focused on how to counter an explosion of mideast violence that they believe is being fueled by long time foe iran. >> always -- >> reporter: the u.s. brokered nuclear deal also made rulers here deeply suspicious. saudi leaders feel he jeopardized their status as america's key ally in the middle east. ben rhoads -- >> we understand this is their neighborhood, they're worried about iran and what its agenda is and actions that they have taken. our point is simply that -- that concern with iran should not

diplomatic engagement if there is ability to resolve problems. >> reporter: president obama's arrival on wednesday was not met with the usual pomp and ceremony given off to visiting leaders. it also wasn't broadcast on state tv. but u.s. officials denied that was a snub. in a two-hour long meeting yesterday, president obama tried to clear the air with king solomon. but frustrated saudi leaders are looking towards the next u.s. president whether hillary clinton or even donald trump. >> president obama goes from mideast politics to british pomp and circumstance. the president and mrs. obama are having lunch with queen elizabeth celebrating her 90th birthday. mark phillips is in london. >> if proof is needed that queens are not like you and me their birthdays are a good place to start. queens get two of them. the real one which for queen elizabeth is today. an official one with all the state trappings which is in

june. even for queens, this is the one that counts. ♪ ♪ the choir sang "return to sender" as the queen began her birthday celebrations visiting a post office. elvis may be the king of rock 'n' roll but this monarchy definitely hasn't left the building. as the the new stamps issued for the queen any 90th indicate it will be around for a while yet. one queen and three kings in waiting. according to the second in line, prince william, she has been the best possible teacher. >> i think the queen's duty and her service her tolerance, her commitment to, to others, i think that's all been incredibly important to me and it's been a real, sort of guiding example. of just what sort of a good monarch scan be. -- can be. a 90-year-old monarch on the throne for 64 years. maybe that's why the next choir sang when i'm 64. ♪

the queen has witnessed so many milestones over her long life. a collection of 90 photographs taken over 90 years pulled together in celebration. but this is a private milestone too. and the latest photo of the queen with her youngest grandchildren and her great grandchildren may be the most personal. that's 11-month-old princess charlotte in her arms with william and kate any other child, prince george in the short pants just beside her. people who know her say there are two queens. the public dutiful one and the private one, a country girl at heart, where she can be herself. >> he designed -- >> no one knows that better than margaret rhodes who has known the queen since childhood and still enjoys a private friendship with her. what do you call her, her majesty, or on a first name basis? >> i call her by her childish name. lilibet. >> lilibet to you.

>> yes. >> does she still respond to lilibet? >> yes. >> reporter: and lilibet at 90 is showing few signs of slowing down. other members of her family now fill in at some official engagements, but she still does plenty of them herself. being there its what the job is all about. >> we have prime ministers by the dozen. we have the queen who is always there. you know? i think that gives people a sense of safety some how almost. you know? and, and i think that -- she herself would -- does all of the things that she to do, putting on a crown and opening parliament and things like that. but at the same time, she likes to take her dogs for a walk, and, and, talk to the ponies, and pull out weed as she sees them. you know, she is a mixture. >> reporter: federal investigs

is believed to be the longest cross border drug tunnel. the tunnel stretches the length of more than eight football fields from tijuana in mexico to san diego. the discovery led to a $30 million drug bust. carter evans has the story. >> reporter: barely wide enough to squeeze a person through, this unassuming hole transforms into an elaborate underground maze. clear. zig-zagging for half a mile. the cramped compact tunnel stretches across the u.s.-mexico border andinvestigators say, it is an unprecedented drug smuggling system. >> we believe this to be the longest tunnel that we have discovered in the district to date. >> reporter: as part of an eight-month investigation. federal agents seized more than one ton of cocaine and seven tons of marijuana worth nearly $30 million. the tunnel stretched from tijuana all the way to this industrial park in san diego where the drugs were loaded. only about 3 feet wide, the tunnel was remarkably complex. >> 10 feet down in this hole, it is really a completely different

story. it is equipped with a ventilation system. and a -- commercial large elevator that i would estimate could hold 8 to 10 people. >> reporter: investigators say this is the largest single seizure of cocaine related to a tunnel along the california/mexico border. most of the cocaine smuggled into the u.s. comes in on small boats. and even make shift subra means. we saw this firsthand when we traveled with the coast guard last year following a record $200 million drug bust in the pacific. so far, six people including one u.s. citizen have been arrested in connection with the latest seizure and they face drug trafficking charges. carter evans. the "cbs overnight news" will be right back. ♪

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♪ reikers island is the biggest jail in new york city and one of the most violent in the nation. some violence is blamed on corrections officers who work there. nine rikers' officers are on trial right now chared with beating a prisoner three years ago and covering it up. since 2012 more than 50 corrections officers faced charges including assault, falsifying reports and smuggling contraband. bill whitaker took a look behind the prison bars for "60 minutes." >> what you really have was a culture of violence on top of a code of silence.

and that is a deadly combination. and i mean that literally. as we found in, in a number of cases, that we have brought in connection with reikers island. >> reporter: concerned by the deaths and a stream of alarming reports about reikers island, the u.s. attorney for the southern district of new york, launched a two-year investigation into the jail complex. >> we found in an alarming number of cases, there was no discipline with respect to officers at all even an officer who had dozens of complaints against him and never disciplined once or maybe one time. and that's something that has to change. people have to understand that there are consequence for their actions not just the inmates. but the, the officers as well. >> reporter: how long has this been going on? >> years and years. too long. >> reporter: rikers is a 400 acre island off the tarmac of la guardia airport in the shadows of manhattan skyscrapers. one bridge lead in and out. it is surrounded by its own mote. the inmate population has come down dramatically, from a high of 20,000 to 10,000. but despite the decrease, city data shows violence has gone up over the last decade. because of the u.s. attorney's findings an unusual

collaboration was formed. berrera, the prosecutor teamed up with plaintiff's lawyers, legal aid, in a class action lawsuit on behalf of a dozen rikers inmates. >> number of facial fracture, traumatic brain injury, broken bones and serious physical injury is just out of control. >> reporter: compounding problems at rikers is increase in the number of mentally ill inmates. >> that just complicates issues relating to violence and issues relating to care and issues relating to discipline the it's a problem. >> reporter: what was captured on this video obtained by 60 minutes helps illustrate what the u.s. attorney is talk about. it has not been seen in public before. bradley ballard, schizophrenic and diabetic brought to rikers in 2013 on charges of violating parole for an assault

conviction. in the video, he was observed twisting his shirt into a phallic symbol and making lewd gestures and taken back to his cell, according to an investigation. >> he was placed in the equivalent of solitary confinement, put him in a cell. locked the cell. basically threw away the key. >> he represents ballard avenue family in a pending wrongful death. a report find balld was locked in a cell for six days prior to his death and, was denied access to life supporting medications and day after day, officers, supervisors and clinicians walked by observed his deteriorating state but failed to help him. after repeated floodings of ballard's toilet. a maintenance worker turned off the water running into ballard's cell. the report found that ballard was laying in his own waste. >> spraying deodorizer.

>> reports, correction officers were bringing aerosol cans from home because the stench was so bad coming from the cell. >> here, an inmate who delivered a food tray pulled his shirt up over his nose. the report found the videotape indicated ballard's cell was closely unsanitary. finally on the sixth day, medical workers were called. according to the report, an officer asked ballard if he could get up on his own. "i need help" ballard said. inmate workers carried him out and put him on a gurney. record show, ballard went into cardiac arrest soon after and died hours later. >> they watched him languish for seven days as he died. and they did nothing. it was the functional equivalent of torture. k

>> reporter: the city's medical examiner declared ballard's death a homicide according to the commission report and called the medical and custodial treatment from the time he enters rikers so incompetent and inadequate as to shock the conscience. the department of correction issued a statement that it adjusted its practices to ensure that a similar tragedy doesn't happen again. but to this day no criminal charges have been filed against any of the officers, supervisors, or health workers involved. it is impossible to know if anyone stepped forward. but if they did, it wasn't enough to help bradley ballard. >> that's inhumane. in of my opinion. that should never have happened. >> reporter: norman seabrook president of the union that represents the correction officers but not the higher ranking supervisors. we showed him the ballard video. >> who's responsible? >> the supervisor. >> what about your officers? >> the officers follow instruction of the supervisors. >> reporter: in another incident captured on surveice

inmate jose bautista tried to hang himself. arrested on dope mostic charges awaiting trial. he couldn't post the $250 bail. when he jumped up suddenly, officers beat him so severely he suffered a perforated bowel and needed emergency surgery according to case records. bautista's case was one of 129 serious injuries over an 11-month period documented in a revealing report by the new york city department of health and mental hygiene. that was intended for internal use only, but 60 minutes managed to get a copy. the report found 77% of the injuries involved mentally ill inmates and their injuries were severe enough off to require care beyond the capacity of jail medical doctors. >> could take a third of the 77% and say that okay it was the

violent and needed to be subdued. but 77% is -- i've think tells the story. that's a problem. >> reporter: dr. daniel seling now in private practice was executive director of mental health at rikers for five years until he left in 2014. is it fair to say that rikers is -- mental institution? >> sure, probably one of the largest mental institutions in the nation if not the largest. >> reporter: can you tell me about the case of bradley ballard, what does that say about how things work on rikers. >> that's probably the worst case that i have experienced, been a part of -- that was a -- a case in which all systems failed. >> reporter: seling said the staff of the private medical contractor failed to do the required daily rounds and never informed him about ballard's

the contract with the firm was not renewed. bradley ballard not the only mentally ill inmate to die in custody in recent years. in 2014, u.s. attorney, filed the first criminal civil rights case in a decade against a rikers officer or supervisor in connection with the poisoning of mentally ill inmamt, jason etererea, died after ingesting toxic soap in solitary confinement. as seen in the video, a robbery suspect who was also awaiting trial was escorted to a cell where he swallowed the toxic soap given off to him cleaning his cell. his father, ramon, tells us he believes he ate the soap in a desperate effort to get out of solitary confinement. >> my son was screaming. burning of inside. >> he is dying? >> he is dying. >> reporter: ape few hours later according to court documents. correction officer, raymond castro, alerted captain terrance pendergrass that the inmate

according to testimony, the captain said don't call me itch you have live, breathing body. only call me if you need a cell extraction or if you have a dead body. another correction officer, angel lazarte testified as to what happened next. a pharmacy technician on her rounds, said the inmate could die. he then approached pendergrass and pendergrass told him write an injury report. you can see on the tape. he went to look into the ininmate's cell himself. >> see the full report on cbsnews.com. the "cbs overnight news" will be right back. but there's a difference between the omega-3s in fish oil and those in megared krill oil. unlike fish oil, megared is easily absorbed by your body... ...which makes your heart, well, mega-happy. happier still, megared is proven to increase

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the olympic torch was lit in athens on the way to brazil. site of this year's summer games. they kick off in three months. but as ben tracy reports, the country still has a lot of work to do. ♪ ♪ >> reporter: this video made by brazilian government shows rio as a stunning and energetic city, fit for the olympic gods. ♪ ♪ but nearly seven years after it was chosen to host the summer games there is a new reality in rio. >> when brazil was awarded the games in 2009 it was a stable country. now in the interim it became

facing impeachment. >> reporter: brazil's senate will vote whether to impreach the president and several other high ranking politicians are tied to a massive corruption scandal. there are concerns about security. brazil shares a border with ten other countries that experts say terrorists could exploit. >> they see there is opportunity in maybe loose border control, poor governance, corruption. and the islamic state and al qaeda are always looking for those major venues where they can make a very powerful statement. >> reporter: and then there is zika, the world health organization declared it a global health emergency. because it causes serious birth defects. u.s. soccer star hope solo still plans to compete in the games admitted in february she is concerned. >> at some point i do want to start a family. and, i don't want to be worried. i don't want the anxieties. >> alligators have been breeding

golf course. and rio's waterways are so contaminated experts say athletes are competing in the equivalent of raw sewage. one athlete believes he got flesh eating bacteria after sailing in rio's waters. the olympic committee says rio is on track to host the games. all but two venues are finished. and after a slow start, ticket sales are finally picking up. >> rio 2016 team is ready to rise to this challenges and to deliver olympic and paraolympic game that will reflect the brazilian warmth, the brazilian hospitality and love for the games. >> reporter: once the games begin it is unlikely we'll see a lot of empty seats in the stand that's because if they don't sell out the tickets the government plans to give the tickets away to local schools. as for the price tag for awful this, the rio olympics right now

expected to cost $11 billion. >> "cbs ov

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helps students develop strong critical thinking skills- [boy] kinda like eisxercing my brain? yeah! see this old question? it doesn't tell me whether you understand the math, because you can just guess and get it right. [boy] eenie meanie miny mo! [woman] exactly. now try this new kind of question. [boy] hm, 3/2 is the same as 3 one halves; that's here at one and one half! [woman] right! now i can see that you really understand fractions. and the number line.

[boy] do i win anything? [woman. laughs] ah! ha-ha nfc, afc, offensive lineman, defensive tackles, quarterbacks and cornerbacks are all living united. to ensure the academic success of millions of kids in our communities. all the way to graduation day. but that won't happen without you. so take the pledge at unitedway.org. make a difference in the life of a child. suit up like your favorite nfl players, and become a volunteer reader,

captioning funded by cbs it's friday, april 22nd, 2016. this is the "cbs morning news." ♪ purple rain purple rain ♪ >> prince, dead at the age of 57. the rock icon found lifeless inside his minnesota compound. ahead, a look back on the music legend's life and his last days. ♪ >> from the poignant to the powerful. tributes are pouring in from around the world this morning from jennifer hudson on broadway to james cordon at the desk of