guilty on all count. a jury convicts dzhokhar tsarnaev of killing four and injuring hundreds during a terror spree that began with the bombing of the boston marathon. now a jury will decide whether a 21-year-old will get the death penalty. severe weather for middle america. pose an even greater risk of damaging weather today. i'm bob schieffer and today on "face the nation" -- >> and a chapter is closing on an historic journalism career. bob schieffer announces he's stepping down this summer. >> i couldn't ask for a better life or something that was more fun and more fulfilling.

this is the "cbs morning news" for thursday, april 9, 2015. forecasters are warning about tornadoes and high winds. residents got a preview wednesday as severe weather lashed the plain states. a huge funnel cloud over kansas. a tornado was reported just over the state line in oklahoma. also in kansas, a storm chaser was rolling video wednesday when massive chunks of hail slammed into his windshield. it left cracks in the windshield like spider webs. the rumble of thunder filled the air in dayton ohio

wednesday as an electric storm lit up the sky. lightning struck at least one person. a college student struck in a parking lot is hospitalized in severe condition. >> we saw quite a bit of severe weather on wednesday and i'll be tracking all of this east as we head into thursday. low pressure moving toward the great lakes. a lot of warm, humid air moving through the southeastern states. a clashing of air masses producing thunderstorms as we head through thursday and friday as well. here's a look at future radar. a messy pattern throughout the day. batches of thunderstorms developing. some for the morning and redeveloping in the evening and a squall line likely to head to mississippi. a broad area focusing from detroit and cleveland, southward and into texarkana we could see a few more tornadoes. keep a close eye on the weather thursday. friday, we're watching the mid-atlantic philly down to

d.c. and low country of south carolina. the tail end of the front reaching around san antonio, austin, houston, heads up for weather. i'm eric fisher for cbs news. the boston marathon trial is heading to the penalty face. a jury found dzhokhar tsarnaev guilty on all counts wednesday. the same panel will decide whether he should be executed or spend the rest of his life behind bars. don champion, good morning. >> reporter: good morning. observers caesarsay tsarnaev showed no emotion. the jury could take much longer to decide if tsarnaev should die or spend the rest of his life in prison. it is now up to a federal jury to decide the appropriate punishment for boston marathon bomber dzhokhar tsarnaev. on wednesday, the 12 men and women found tsarnaev guilty of

30 counts connected to the 2013 bombings. now defense attorneys will present new evidence and call on experts to try and save tsarnaev's life. >> we may also hear from relatives, from friends, who can talk about his change. he was a normal teenager. how did he become the person who allowed himself to do this terrible act? >> reporter: from the beginning defense attorney judy clarke conceded tsarnaev was pressured to carrying out the attacks biz hi older brother tamerlan who later died in a shootout with police. prosecutors are expected to call on even more victims as they make their case for the death penalty. rebecca gregory lost her leg in the bombings. >> i believe the true judgment comes after he dies anyway so it's really not my judgment to make. >> reporter: many other survivors were in the courtroom for a verdict and hoped for a sense of closure. >> i don't know how anyone could have done what he did. >> reporter: for loretta, the image of tsarnaev leaving an image behind the youngest victim

is forever etched in her memory. if the jury does not unanimously vote for the death penalty, tsarnaev will get life in prison without parole. now, members of the jury have been given a break for the rest of the week. the penalty phase of this trial is expected to pick up next week. for many of the jurors it could mean several days or even weeks of more emotional and graphic testimony. >> don champion in boston, thank you. the former south carolina police officer caught on video shooting a fleeing suspect faced an earlier complaint of excessive force. they tell the ap that michael slager provoked a confrontation with him in 2013. slager has been charged with murder and fired from the force and we're hearing for the first time from the witness who recorded the shocking video of slager shooting walter scott. >> reporter: demonstrators

gathered outside north charleston city hall. >> things have not changed. you have got to stay together and unite. >> reporter: on saturday officer michael slager pulled over scott's car for a broken tail light. after a brief struggle the officer claimed he feeder for a life but cell phone video shows scott running away as slager fired eight shots toward his back. >> i thought my brother was gunned down like an animal. >> reporter: in an interview % with nbc news, the man who shot the video says he pulled out his camera when he saw the two men struggling on the ground. >> i remember the police had control of the situation. he had control of scott. and scott was trying just to get away from the taser. >> reporter: scott was handcuffed on the ground and later died. after the video showing scott's final moments went viral, officer slager was fired and charged with murder. >> i have watched the video.

and i was sickened by what a saw. >> reporter: investigators are also looking closely at a part of the video that shows slager picking up an object after the shooting and dropping it near scott's body. police dash cam video of the incident could be released on thursday. cbs news north charleston south carolina. the secret service is dealing with another embarrassing scandal this morning. a senior supervisor xavier morales, is accused of assaulting a female employee who worked for him. she said he made unwanted sexual advances and grabbed her at agency headquarters last week. he has been placed on leave and lost security clearance. in march two high-ranking security officials were accused of driving into an active bomb investigation at the white house. coming up on "the moempkrning news," the vaccine debate heats

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dipped in rich dark chocolate. discover brookside crunchy clusters. in new york city water poured off a subway train yesterday and 500 people had to be evacuated. the water was more than two feet deep and covered the third rail, forcing the station to be closed. there were no reports of injuries. a water main break caused flood which also covered the streets nearby. officials hope to have service back today. opponents rallied against a proposed bill in california to require school children to be vaccinated. protesters chanted at the state capitol. the bill was prompted by the outbreek of measles and whooping cough in california. >> god gave us the ability to heal within, he gave us all the tools to heal naturally, so

we'll willing to risk a childhood illness worth risking something more serious like autism. >> among demonstrators, like robert kennedy jr., who says some sack convenientvaccines are not safe. obama is calling for changing gay and transgender. a transgender woman from ohio who says she went through psychiatric treatment. the white house says conversion therapy is neither medically or appropriate. the obama is opening a trip to the caribbean in central america. he made an unscheduled visit to the bob marley museum. the president says he has all the albums of the legendary performer. straight ahead, long time "face the nation" host bob schieffer gets ready for a new chapter in his life. and champ jack nicklaus

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airline merger advances and you may be surprised how much time teenagers spend surfing on their phone. good morning, jill. >> good morning. american airlines and us airways are one step closer to completing their merger. the federal aviation administration has granted the two airlines the authority to operate as a single carrier. they can combine workforces websites and reservation systems starting this fall. eventually, it will just be called american airlines. here on wall street investors will be watching unemployment claims report from last week. the dow rose 27 points wednesday. the s&p was up 5. the nasdaq increased 40 points. mark pinkus is back as ceo of ziynga. after two years he's taking control of the struggling online game company he founded. best known for games like farmville, at one time the most popular company on facebook but more recently other people moved

on to other games and mobile devices. an overwhelming majority of american teenagers have smartphones. a study by pew research center finds 73% of teens have one. the report says 91% of those go on the internet on a mobile device occasionally and 24% say they're online almost constantly. and those strange rob lowe tv commercials are done. >> i'm rob lowe and i have directv. >> i'm super creepy rob lowe and i have cable. >> the ads with lowe playing series of loser alter ego drew complaints from cable giant comcast. directv was told to stop using the ads because there's no proof their service is better than cable. >> you can't get enough of rob lowe is the problem. jill, thank you. golf's greatest challenge tees off today. more than 80 players are invited

to pursue a green jacket at the masters. on wednesday, some took part in the par-3 contest. tiger woods walked the course. it was his first time playing in the contest since 2004. the biggest shot of the day belonged to none other than six-time masters champion jack nicklaus. taking a swing on the fourth hole and watch what happens when the ball lands on the green. >> it's a hole-in-one for the 75-year-old nicklaus. afterward he said he felt he was going to make a hole-in-one. the only place to watch the last two days of the masters is right here on cbs. our coverage begins saturday at 3 p.m. eastern and the final round begins sunday at 2 p.m. eastern. when we return, a legendary broadcaster steps down. cbs veteran bob schieffer announces plans to sign off from the news network.

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here's a look at today's forecast in some cities around the country. today is the anniversary of the end of the civil war. 150 years ago general confederate robert e. lee surrendered to grant. the document between the wars were signed in the courthouse in virginia april 9, 1865. bells will ring today to mark the anniversary. we learned last night that an era is coming to a close at cbs news. bob schieffer announced he will retire this summer. susan mcginnis is in washington with more. good morning. >> reporter: good morning. bob schieffer has been a fixture here at cbs news since 1969.

he's been chief washington correspondent since 1982. but he made his announcement that he is stepping down at another place he holds dear his alma mater, texas christian university. >> i wanted this to be the place, and i wanted you all to be the first to know that this summer i'm going to retire. >> reporter: the announcement saddened audience members attending a conference at the tcu journalism school that bears schieffer's name. the 70-year-old choking up as he recalled a career that began in ft. worth, texas. >> as little boy, as a young reporter, i always wanted to be a journalist. and i got to do that. >> reporter: for more than 50 years, schieffer's boyhood dream gave him a front row seat to history. >> and the family coming down. and the brother is in a light coat. >> reporter: as a young reporter in texas, he covered the aftermath of president kennedy's assassination.

>> this is the ""cbs evening news"" with bob schieffer in nigeria. >> reporter: schieffer joined cbs news in 1969 and has interviewed all eight presidents who have occupied the president since then. >> that raises some issues. >> well, of course the record -- >> do you think of yourself now as friends? >> i don't sense that you have >> reporter: schieffer's tangled with washington insiders for 24 years as host of "face the nation". >> i have to ask you, what in the world were you talking about, sir? >> reporter: it hasn't been all hard hitting. >> we're rolling? okay. i'll let you start, bob, since it's your show. >> exactly. >> reporter: schieffer announced his retirement before only to stay on, saying how much he enjoys his job. that was a point he made again last night. >> that's why you ought chose to do whatever it is you want to do. don't worry about the success. pick something you like to do.

if you get good at it the success part takes care of itself. for me it was a great life. >> now, cbs is not making any announcements yet about any replacements for bob schieffer. he'll be in his usual chair this coming sunday morning for "face the nation" and pretty more before he steps down. it will be sad to not have him on this upcoming 2016 campaign. >> a legendary career. a loss for the news. susan mcginnis, thank you. hopefully bob schieffer's retirement leaves him plenty of time for his other passion. his favorite country band honky tonk confidential. ♪ let me look deep into your eyes ♪ ♪ i said excuse me bud before you intrude i don't understand this interlude ♪ ♪ i'm a cowboy from lonesome

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here is a look at this morning's top story. the boston bombing marathon trial moves to the penalty phase. the jury convicted dzhokhar tsarnaev on all 30 counts wednesday. the same women and men will determine if he deserves a life in prison. forecasters say large hail damaging winds and possible tornadoes could hit states from the plains to the midwest. the odds of becoming a pro football player are incredibly small. even more difficult becoming a pro football official. there are only 119 across the country and one of those just one, is a woman. jeff glor met the line judge who just broke the gender barrier. >> reporter: as a happily mother of three, sarah thomas has

experienced plenty of unforgettable life moments. the last one just last week. >> it came thursday morning april 2nd at 10:47 a.m. >> reporter: she was told she'd become the first full-time female official in the 95-year history of the national football league. you said you never set out to be first, but you are first. >> i've always said that if you do something because you love it and not try to prove somebody wrong or get recognition for it the recognition probably is just going to happen. >> out of bounds! we're winding. we're winding! rt. >> reporter: between kids ages 14, 11 and 2, and her work as a pharmaceutical sales ren, nfl officiating becomes her third full-time job and the league has put her to work already. >> the nfl had a bad year. a lot of criticism on domestic violence. domestic violence on women. how much of this is a reaction to that? >> i don't -- this isn't a reactions to that. sarah, when you look at her story and her journey, she's

been officiating for 20 years. she's been on our radar since 2007, so this isn't an overnight sensation. >> reporter: a former college basketball standout, thomas talk tucks her blond ponytail under the cap on the football field. she says to blend in. the only place she wants to stand out, when she's trying to stay on top of the ever-changing list of nfl rules. >> you don't watch the game as a fan anymore. you try to pick up on every little thing you can. >> when you're watching with your husband now or your kids you're educating them. >> if they ask. >> reporter: do they ask? >> at times. and it might not -- he might not agree with me. >> reporter: who wins those arguments? >> i do. >> get them ready, coach! >> reporter: nfl players and coaches, you've been warned. jeff glor, cbs news, new york. coming up after your local news on "cbs this morning," more of jeff glor's interview with sarah and jim nance will be live

from augusta as the masters tees off. and we'll show you how texas has become a major player in the wine-making business. thanks for watching. i'm alison harmelin. have a great day.

the the officer charged with murdering an unarm black man in south carolina this weekend has deep ties to our area find out where he grew up and how residents are responding. good morning i'm ukee washington. i'm erika von tiehl. also a case of home grown terror in our area the local woman charged with trying to join isis is expect in court to see whether she can be released from jail. good morning carol. >> good morning to you. i'm sure everybody has noticed just how dreary the weather has been yesterday and i think we have another situation brewing today. it is going to be dreary again today. you can tell by taking a look the a the skies that are cloudy, they will stay cloudy the entire