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We need that. >> a family friend, luis vazquez. austin hightower is a student at university of massachusetts and dartmouth and knows julian, tamerlan's sparring partner. let me start with you austin,some of dzhokhar's friend have been saying in the last week they cannot understand what on earth happened to make him do this, that he was a good guy. a friendly guy. a normal guy. you've heard all this all week. there must have been some sign to some of his friends, surely. that something wasn't quite right. >> mr. morgan, the only thing i can think of is we add conversation probably two months ag...

Hall, and he looked a bit detached from when i had seen him before, probably a week or two before that. he looked a bit sadder. i can't really think of why that may be. perhaps it's because of his friends, they didn't come back second semester and so i saw him a lot less, but i know that he was a bit more detached from reality when i saw him not too long ago. >> you lived in the dorm building next to his. you actually helped him move in in his freshman year. what was he like in those early days? >> he was nice, funny. i had seen him walking around campus a bunch of times with his friends. he p...

75% of the population since 1968. it's devastating. almost all of it leads directly or indirectly to gun violence. >> what options do you feel like the city of pittsburgh has? what options do you have to reduce gun violence? >> it makes it sadder. the hold the nra has on the state legislature that we are prohibited from passing any responsible gun ownership laws. >> when we fight nationwide about the gun laws, one of the things that is commonly observed is the cities have different needs than rural areas but the state legislation, the state law in pennsylvania says you can't have a specific la...