jim axelrod, cbs news, new york. >> ninan: well, that's the "cbs weekend news" for this saturday. "fraes hours" and, of course, the news continues now on our 24-hour digital network cbsn at cbsnews.com. i'm reena ninan in new york. thank you for joining us. good night. captioning sponsored by cbs captioned by media access group at wgbh access.wgbh.org take down a suspect at a busy bart station. >>> live from the cbs bay area studios. >>> cameras rolling as police take down a suspect at a bart station. did officers go too far? >>> a warning tonight for bay area bicyclists the trail that has been booby trapped. >>> a fire on the tracks in the east bay it's been a rough ride on bart today. >> we begin with that dramatic video at a san francisco bart station tonight. witnesses and bart officials are telling two very different stories. a witness shot this video yesterday as bart police detained a man at the embark dare row station you can see them holding him down as the crowd yells at him to let him go. the witness claims the suspect had been playing around with a friend on the train

here's jim axelrod. >> reporter: two summers ago, everyone was getting into the act. and while the cynics tried to throw their own cold water on the idea, saying it was a way to make a splash without actually doing anything-- >> don't dump a bucket of ice water on your head. it's stupid. >> reporter: the ice bucket challenge raised $115 million in less than two months. >> without the ice bucket challenge, we wouldn't have gotten this money. >> reporter: dr. john landers, a neurologist at the university of massachusetts, runs a lab trying to find genes linked to he got $1.5 million from the challenge. does a million, a million and a half bucks really make a difference? >> you know, not to sound cliche, but, frankly, every bit counts. genetics, unfortunately, is one of those areas that is on the more expensive side. >> reporter: the ice bucket challenge money led to dr. landerce' lab isolating a gene which researchers are finding qies promising for more than 17 million people took the challenge, and to the the researchers on the front lines in the battle against a.l.s.,

here's jim axelrod. ♪ we are the champions, my friends ♪ >> reporter: love him or hate him, you havehe guy knows how the make an entrance. but it wasn't the sight of donald trump that set the twitter-sphere on fire last night as much as the sound that accompanied him. ♪ we are the champions the moment trump made freddie mercury roll over in his grave, was one tweet, referencing the contradiction that a nominee of party is platform anti-same-sex marriage would choose a song written and sung by a gay man who died from aids. irony not lost on freddie mercury's pals like sting. do you think freddie mercury would approve? >> no. >> reporter: as for queen, their message was simple, "an unauthorized use at the republican convention against our wishes." it's the second time in two months they've made it clear they don't want trump using their music and asked him not to. ♪ we will keep on the end ♪ while the song's use was probably legal, it doesn't make it right. >> that trump didn't follow that request, to me as a lure, it's not illegal, but it's offensive. ♪ you can't always get what you w

jim axelrod, cbs news, new york. >> that's the "cbs overnight news" for this thursday.u the news continues. for others check back with us a little bit later for the morning news and "cbs this morning." coming to you live from philadelphia. from the site of the democratic national convention, i'm scott pelley. ♪ ♪ >>> this is the "cbs overnight news." >>> welcome to the "cbs overnight news." i'm jericka duncan. outrage in baltimore after prosecutors dropped all charges against the police officers accused in the death of freddie gray. the young black man suffered a broken neck shackled in the back of a police van. he died a week later of his injuries. the death sparked riots and fueled a nation wide debate over police tactics. three officers had been found not guilty. now the other three won't have to stand trial at all. jeff pegues has more. >> reporter: baltimore's top prosecutor, marilyn mosby had a small group of supporters behind her and divided city beyond. waiting for her to explain why she dropped the charges. >> for those that believe i am anti-police, it is simp

here's jim axelrod. ♪ we are the champions my friend ♪ >> reporter: love him or hate him, you've got knows how to make an entrance. but it wasn't the sight of donald trump that sent the twitter sphere on fire last night as often as the sounds that accompanied him. the moment trump made freddy mercury roll over in his grave was one tweet referencing contradiction that the nominee of a party whose platform is anti-same sex marriage would choose a song written and sung by a gay man who died from aids. irony not lost on mercury's pals like sting. >> do you think he would approve? >> no. >> reporter: as for queen, their message was simple. an unauthorized use at the republican convention against our wishes. the second time in two months they've made it clear they don't want trump using their music. and asked him not to. ♪ we'll keep on fighting till the end ♪ >> while the song used last night was probably legal says music and film lawyer mark jacobs jacobson, that doesn't make it right. >> trump didn't follow that request. to me as a lawyer it's offensive. it's not illegal but it's offens

i'm jim axelrod reporting from cbs news headquarters in new york. breaking news from campaign 2016.ews has learned that donald trump has picked his running mate. trump, who will accept the republican presidential nomination one week from today, has chosen the governor of indiana, mike pence. pence is 57 years old, 13 years younger than trump, with solid conservative credentials. he's serving his first term of governor after 12 years in congress, so he does have the washington experience trump said he was looking for. trump and members of his family met with governor pence in indiana yesterday. pence was chosen over former

i'm jim axelrod reporting from cbs news headquarters in new york. breaking news from campaign 2016.bs news has learned that donald trump has picked his running mate. trump, who will accept the republican presidential nomination one week from today, has chosen the governor of indiana, mike pence. pence is 57 years old, 13 years younger than trump, with solid conservative credentials. he's serving his first term of governor after 12 years in congress, so he does have the washington experience trump said he was looking for. trump and members of his family met with governor pence in indiana yesterday. pence was chosen over for

jim axelrod shows us the most moving moments of the evening.d morning. >> reporter: good morning the espeys recognize achievements in the world of sports. last night, there was no getting away from the headlines that have been dominating the news in this country him some of the biggest names in the sports world use their high platform to call for action. >> laquan mcdonald, philandro kass still. >> reporter: nba stars chris paul lebron james and dwyane wade opened the show with a plea. >> the racial profiling has to stop. the shoot-to-kill mentality has to stop. not seeing the value of black and brown bodies has to stop. but also to the retaliation has to stop. it's time to look in the mirror and ask doing to create change? >> reporter: the calls to curb gun violence continue as she accepted the arthur ashe award for her son. he was shot and killed last year while protecting others from gunfire. >> i think tonight of why he died and what you can do tomorrow to pre vent the next innocent young man or woman from being lost as well. >> reporter: v

jim axelrod shows us. >> the world of sports, but last night, no getting away from the headlines thate been dominating the news in this country. some of the biggest names from the sports world use their high profile platform to call for action. >> laquan mcdonald, alton sterling, philando castile. >> nba stars chris paul, lebron james, dwayne wade and carmelo anthony, opened the show with a plea. >> the racial profiling has to stop. the shoot to kill mentality has to stop. not seeing the value of black and brown bodies, has to stop. but also, the retaliation has to stop. it is time to look in the mirror and ask ourselves, what are we doing to create change. >> the calls to curb gun violence continued, as she accepted the courage award on behalf of her son, zaevion. the football player from tennessee was shot and killed last year, while protecting others from gunfire. >> think tonight about why he died, and what you can do tomorrow to prevent the next innocent young man or woman from being lost as well. >> vice-president joe biden presented the jimmy v award, named after the college ba