morgan radford looks into the rapidly growing industry of voltourism. >> more than just i sat on a beach and got drunk for a week. now i'm making a difference. >>> plus, a week where violence and death played out in real time on video for the country to see again and again. harry smith has a look at how someone with a smartphone and a facebook account can change the way we see the world. >>> and we have another strong crew assembled around the table this morning. we'll talk with them in a moment, first some headlines. black lives matter protests will be held across the country. police fired smoke bombs at demonstrators blocking interstate 94 in st. paul, minnesota, last night. prominent organizers were among several activists arrested last night during a largely peaceful protest in baton rouge. shots were fired last night outside police headquarters in snoe san antonio, texas. a suspicious person was spotted at a parking garage near police headquarters, but a search of the garage turned up nothing. >>> a shocking death broadcast live on television. 29-year-old bull fighter victor barrio

nbc's morgan radford has more. >> reporter: a community of mourners, lifting elie wiesel's casket as they grieve his death and celebrate his life. >> he inspired us, and gave us a sense of responsibility. >> reporter: pictured here at age 16, in the bunk of a nazi concentration camp, just days after it was liberated by u.s. troops. wiesel survived the holocaust. documenting his horrors in his critically acclaimed novel "night." later becoming an activist and nobel peace prize lawyer yet, fighting injustice on the world stage. his own scars from cruelty never forgotten. >> hatred is the great ink and vengeance the meaning, they are diseases. history is dominated by death. >> reporter: today the world remembers his call for inclusion. president obama saying he raised his voice not just against anti-semitism, but against hatred, bigotry, and intolerance in all its forms. former president bush, calling wiesel an example of a graceful life. but for those who knew him privately, he was more than just a living legend, he was a self-less leader. >> gave his family hope. gave his family direc

morgan radford has the latest. >> reporter: this is the man police thought was armed and suicidal. 26-year-old arnoldo rios, autistic and nonverbal. seen here with the toy truck before his therapist called for calm before being shot by an officer. her son is now in a psychiatric shot. she says he was handcuffed and held in a squad car for three hours. >> translator: my son is a human. not a piece of trash they said wiping away tears. arnoldo sister she's he's still upset and refuses to take off his shirt stained with his therapist's blood. >> says i took this job to save lives and help people. i did what i had to do in a split second. his commanding officer is on unpaid leave for giving conflicting accounts to investigators while they learn what happened. charles kinsey is recovering. >> i was more worried about him than myself because i'm -- as long as i got my hands up, they are not going to shoot me, leaving one man wounded and another deeply traumatized. morgan radford, nbc news new york. >>> across the country and here at home, police departments are facing an increasing problem.

nbc's morgan radford shows us the plan to keep the country safe. >> the nation's largest cities and busiest airports, heavily guarded by armed officers. >> it's more secure. it feels good to know that there's someone watching and looking out for us. >> reporter: trained canines at l.a.x. where there's a >> we flew early morning to beat the rush. >> authorities at many airports will be in and out of uniform. >> you'll have behavior detection people that will be in this area. you'll see local law enforcement working with dhs for a presence out there and the airport police as well. >> reporter: at jfk airport in new york, travelers say they are not afraid. this isn't stopping you? fear isn't stopping you? >> it is not. >> we live with the world as it is today and live with the risks and what happened, so we go about our living and live our lives and travel and do what we do. >> reporter: while many are focused on terrorism in the sky, the real threat may be in the car, july 4th being one of the deadliest days on the road. packed highways slowed down by accidents like this one in florida, a bus

morgan radford has the latest. >> reporter: this is the man police thought was armed and suicidal. 26ear-old arnoldo rios, autistic and nonverbal. seen here with the toy truck just like the one he was holding when his behavioral therapy charles kinsey pleaded for calm before being shot by an officer, jonathan aleeta. today, his mother said her son is now in a psychiatric ward after seeing his therapist shot. she says he was handcuffed and held in a squad car for three hours. my son is a human. not a piece of trash, she said wiping away tears. arnoldo's sister says he's still upset and refuses to take off his shirt stained with his therapist's blood. >> he's not sleeping, he's not eating. he's not the same anymore. >>> officer aleeta who is on paid administrative leave pending an investigation by the state's attorney. he says i took this job to save lives and help people. i did what i had to do in a split second. his commanding officer is on unpaid leave for giving conflicting accounts to investigator while the north miami police department tells nbc news they plan to review the case a

morg morg morgan radford has the details. >> today for the first time scientists think they can prove it. >>> it is one of the first interventions that we have found significantly reduced the dent of dementias across time. >> doctor edwards presented the research at the alzheimer's national krch national conversations today. >> she studied over 2785 patients yearly. it did not take long of ten-hour long sessions of over five weeks. >> you can find this exercise online, this one is brain h&q. 67 years old bob harmon was not in the original study but decided to participate in similar research after his family noticed changes in his driving. >> it is something coming slowly and you don't know what's happening to you. >> he says during his exercises, his driving improved and you can multi task better. >> researchers have not figured out why the effects of doing these exercises have lasted so long. they do recommend that anyone over 50 to try it. >> the brain is classic and still learning and still be made stronger like muscles. >> a potential game changer. >> nbc news, new york. >>> ahead

morgan radford looks into the rapidly growing industry of volunteerism. >> i call it bragging rights and more than i sat on a beach and got a tan and got drunk for a week. now i'm actually making a difference. >> plus, a week where violence and death played out in realtime on video for the country to see again and again. harry smith has a look at how someone with a smart phone and a facebook account can change the way we see the world. >>> and we have another strong crew assembled around the table. black lives protest will be held in cities across the country. police fired smoke bombs demonstrators blocking interstate 94 in st. paul. deray mckesson was arrested in baton rouge. >>> shots were tired in an antonio, texas. no officers were injured. a suspect was questioned. an anonymous threat but the dallas police force on high alert saturday. a suspicious person was spotted at a parking garage but a search of the garage turned up nothing. >>> a shocking death broadcast live on television, 29-year-old bullfighter was gored saturday in southeastern spain. he's the first matador to die in

. >> morgan radford reporting. >>> the fbi interviewed hillary clinton for more than three hours saturday about her use of a private email server while she was secretary of state. in an exclusive interview on msnbc with chuck todd, clinton discussed the interview and reiterated that she did nothing wrong. >> i never received nor sent any material that was marked classified, and there is a process for the review of material before it is released to the public, and there were decisions made that material should be classified. i do call that retroactively classifying. clinton said she had no knowledge of a timeline for the review to be completed. donald trump weighed in. tweeting, it is impossible for the fbi not to recommend criminal charge against clinton. what she did was wrong. >> you can watch more of hillary clinton's interview with chuck todd on "meet the press." chuck is also going to have an exclusive interview with labor secretary thomas perez who is rumored to be on clinton's short list for vice president. >>> grab your umbrella, your raincoat, maybe some fuzzy socks, -- lauryn is

morgan radford has more about travel concerns in the air and on the road. >> reporter: the nation's largest city, and busiest airport, heavily guarded by armed officers. >> you know, i think it feels more secure. it really does. you know, because i don't have eyes in the back of my head, but it does feel good to know there is someone watching, and looking out for us. >> reporter: trained canines, a record 1.2 million travelers this weekend. >> we flew early this morning so we could beat the rush. >> reporter: authorities at many airports will be in and out of uniform. >> you will have behavior detection people in the area and also local law enforcement working with dhs and the airport police as well. >> reporter: at jfk airport in new york, travelers say they're not afraid. >> this isn't stopping snu. >> it is not. >> we live with the world as it is today and live with the risks and what happens, so we go about our living, and live our lives and travel and why g where we go. >> reporter: while many focussed on terrorism in the sky, it may be in the car. packed highways slowed down by accide

>> reporter: morgan radford, nbc news, west hartford, connecticut. >> good summer fun. that is "nbc nightly news" for this sunday night. lester holt will be in tomorrow. i'm kate snow reporting from new york. i'll see you tomorrow at 3:00 eastern on nbc. for all of us here at nbc news, >>> it was surreal. >> i was reeling from shock that my parents were gone. >> a devoted couple killed in the home they shared with a museum's worth of collectibles. >> the civil war, guns of all kinds. >> was there any connection between the memora murder? >> question is, who is going to benefit by these two deaths? >> jessica was the only child. >> she's the sole heir. >> the sole heir. >> but wait, hidden among the treasures, something odd. >> it was the most important piece of evidence. >> a clue pointing to the most surprising and calculating killer. >> someone with a sick mind is all i know.

let's go out to my colleague morgan radford who joins me now. what did they tell you? we're seeing lots of beefed-up security across the nation's largest cities at the airports. we're talking a thousand newly minted nypd officers just sworn in on friday now controlling smork anew york and 5,000 officers manning the navy peer ier in chicago. of the 43 million passengers traveling this weekend, 8% of them are flying. those passengers who i spoke to said, look, we're not really scared but we're vigilant. take a listen. >> reporter: the nation's largest cities and busiest airports heavily guarded by armed officers. >> you know, i think it feels more secure. it really does. i don't have eyes in the back of my head but it feels good to know there that there's someone watching and looking out for us. >> reporter: trained canines at l.a.x. where there's a record 1.2 million travelers this weekend. >> we flew earlier to make sure we could beat the rush. >> reporter: authorities at many airports will be in and out of uniform. >> you'll have behavior detection people in this area

. >> morgan radford, thank you. >>> severe weather including flash flooding is a possibility in parts of the midwest and the plains this weekend. for the forecast, we want to get right to dylan dreyer. dylan? >> good evening, peter. we're watching a flood threat through the middle of the country this holiday weekend. we have flash flood watches that include wichita, kansas city, extending over to st. louis. we could see as much rainfall rates as much as 1 to 2 inches per hour in this area through monday. because of this stationary front these areas of low pressure just riding along it, it will keep the rain in the same areas over and over again from sunday through monday, too. that's why we could see some brief flash flooding. we are going to see the rain start to spread farther to the east through the ohio river valley, even making its way into the washington, d.c., area through the day on monday with scattered showers off and on throughout the day and a chance of thunderstorms for the fireworks later on that night. that will be an area where things aren't looking all that great [000

morgan radford has more tonight. >> reporter: a community of mourners lifting elie wiesel's casket as they greet his death and celebrate his life. >> he inspired us and gave us a sense of responsibility. >> reporter: pictured here at age 16 in the bunk of a nazi concentration camp just days after it was liberated by u.s. troops. he survived the holocaust do documenting its horrors in his acclaimed novel "night." his own scars from cruelty never forgotten. >> hatred is degrading and vengeance demeaning. they are diseases. their history is dominated by death. >> reporter: today the world remembers his call for inclusion. president obama saying he raised his voice not just against anti-semitism but against hatred, bill tgotry and intoler in all forms. for those who knew him privately, he was more than just a living legend. he was a selfless leader. >> gave his family hope, gave his family direction. and most importantly, he gave >> reporter: his son describing a gentle and dwoevout man who w always interested in others and whose quiet voice -- >> even in the midst of darkness it is possi

morgan radford is covering the story from coney island in new york. good morning. >> reporter: sheinelle, yesterday was the hottest peaking at 94. this is the first time new york, chicago, l.a., have all been under heat advisories at same time. in those urban areas, concrete and metal, traps that heat making it feel hotter than it is. a deadly heat wave effecting millions this morning as humidity and high temperatures leave 26 states under heat advisory. >> too hot. >> sweating like crazy. >> reporter: in new york, there is so much ozone pollution, an air quality advisory in effect. people urged to take public transportation. >> it feels like i'm on fire. >> i feel like i'm boiling. >> reporter: ac units are flying off the shelves. >> fans, air conditioners. i'm low on air conditioners. >> reporter: cooling centers are popping up all over chicago. >> they have computers here. it is a great place. >> reporter: much of the heartland is caught under a heat dome where the upper atmosphere creates a lid and causing it to sink back down to the ground. that'

>> morgan radford here in new york, thanks. >>> we have the travel, the traffic. dylan, how is the weather this holiday weekend? >> most of the country is actually going to enjoy a really nice holiday weekend, but we do have trouble spots through the middle of the country. we have a lot of rain falling across eastern kansas, northeastern nebraska. the reds, the yellows, the oranges indicate where we have heavy downpours now and this green area that extends over into st. louis is where we have flash flood watches through monday. that's because the rain is going to sit in this one area for the next several days. it's a stationary front. these areas of low pressure will ride along the front, and that's what triggers more and more heavy rain. it will eventually reach washington, d.c., by the time we get to monday, so the fireworks in jeopardy for the d.c. area. as we go through the day, they have y rounds of rain could lead to flash flooding. when you get the heavy pockets of rain that produce 5, 6 inches of rain in a short period of time, and then as we go into monda

nbc's morgan radford is covering the story. >> good morning. yesterday was the hottest day of the year, peaking at 94 degrees. this is the first time all the major cities across the country, new york, chicago, l.a., have been under heat advisory at the same time. just to give you some perspective, in those urban areas, all the concrete and the metal, it trapped that heat, making it feel hotter than it is. >> reporter: a deadly heat wave affecting millions of americans this morning as a dangerous cocktail of humidity and high temperatures leaves 26 states under heat advisory. >> too hot. >> sweating like crazy. >> reporter: in new york, the' also in effect. people are being urged to take public transportation. the heat underground is unbearable. >> it's on fire. >> feels like i'm boiling in a pot of oil. >> reporter: in neighboring new jersey, ac units are flying off the shelves. >> fans, air conditioners. i'm low on air conditioners. >> reporter: cooling centers are popping up all over chicago. >> pool here, computers. it's a great place to com

. >> morgan radford at jfk, thanks so much. for morgan, we're going to ask how secure are airports? to get an answer we'll bring in kenneth in charge of security contingents there and now runs a private security business. how concerned -- welcome to you, kenneth -- should people be about security at airports. >> tsa wkingery hard to keep the airport secure. any individual person really doesn't have to worry. certainly there is a possibility of an attack but with over a million people traveling 427 airports across the united states, the chances of any one person being in that airport if it was attacked are pretty low. people should also not rely exclusively on law enforcement to keep them selves safe. they can help us. okay. what's happened is as over the last 40 years screening points we've actually moved the threat out. instead of we've been looking at working to protect the aircraft, now the threat moved to the screening points, ticket counters. >> but, ken, to that point, that which happened in brussels and istanbul happened outside of those points. one of my colleagues tom coste

morgan radford is at john f. kennedy here in new york.d day to you. >> we're standing outside of jfk airport where there's beefed up security and this is after they had their own square just three days ago. everything turned out to be okay, but there are more than 1,000 newly minted nypd officers patrolling the streets of new york. while a,000 in chicago and then the coast guard is sweeping the west coast b a lot o f the passengers say they feel come forable traveling. they say they have faith in american authorities and say this increased vigilance is part of the new normal. >> i have a lot of faith in our security and government. trying to keep the citizens safe and at the same time as a important, i also want to want what's best for my child. i try to keep my eyes on them and pray for the best. >> what went through your mind when you saw more policemen? >> i felt safer. you feel safer when somebody's there to protect you. it felt like, better. gl earlier today, my mom texted me, just be careful. be alert. but doesn't really bother me t