>> reporter: equally bad for the defense was the evidence that months before the murder tony had tried to get a friend to buy him a magazine for a .380 handgun. >> why do you need to ask a friend in texas for that? >> it's like -- it's a conversation starter. he's in texas. >> a conversation starter? "i need a 380"? >> no, it's something else. like, "oh yeah, by the way. you're in -- you're from texas. aren't these things a little cheaper over there? >> it just looks bad that you're asking a friend -- >> i understand that. yeah. >> -- for a 380 caliber magazine, and a 380 is used to kill rob cantor. >> but i didn't kill rob cantor. >> did you show sophie a gun? >> yeah, i did. yeah. i s -- i was holding it for somebody. >> reporter: according to the defense, the business about the magazine amounted to nothing first, tony's friend never followed through. and second, there was not a shred of evidence that tony was in new jersey on the night rob was killed. >> how can you prove that a man committed a murder in new jersey