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>> as we reported at the top of the program, george zimmermans best friend took the stand as a prosecution witness. hes work in law enforcement for two decades and convinced zimmerman to purchase a gun. here is participant of his testimony. >> and it was actually you who asistered him when he decided that he need add firearm, correct? >> that is correct. >> and did he tell you the reason why he wanted to get a firearm? >> he -- he asked what would -- whether he should or shouldnt to start with. ...