. >> reporter: but to prosecutors andrew paul and jennifer clark, the real criminal in this case waskus kaarma, who was, plain and simple, a murderer. >> the fact is that the defendant was angry and vengeful. he knew that it was a kid coming in his garage. he has his 12-gauge in his hand, and he waits. >> reporter: to counter the defense's suggestion that diren was part of some ring of thieves targeting markus kaarma, investigators tracked down the teens who had hit kaarma's garage, the ones who took the cash, credit cards and -- >> he had a bong and a jar of weed and some alcohol. >> did you know a man named diren dede? >> not personally, no. >> to the best of your knowledge, was he involved in a burglary ring? >> no. >> reporter: so did kaarma really fear for his life that night? prosecutors said ballistics told the story. the first shot to hit diren was to the back of his left arm, meaning he couldn't have been charging toward markus kaarma. >> and then he's gotta do it one more time. he's got to make that final blow. >> reporter: and the final shot was straight to the head. but p