prosecutor hoon chun began to rethink the case. >> the defense attorneys agreed that we could talk towe talked to him, and the detectives and i kept coming back to this hit note, where it's found. he doesn't know garrett warren, their interaction was very brief at the barbecue. >> detectives kept after quiroz, they knew whoever ordered the hit really wanted garrett warren dead. because here's one more twist, the postmark on the note is from after the shooting, meaning it's not so much a hit note as a note explaining to someone how to go back and finish the job. >> it's a rehit, if you want to call it that. >> that finish the job note says chun started to unravel the mystery. >> that is really what kind of broke the case open. that was, quite frankly, the lifeline we had on this case. >> the one unavoidable piece of evidence that finally cracked miguel quiroz. >> we go background and round about this, and finally he admits he was one of the middle men. >> miguel admitted while he wasn't the shooter, he was in on the plot and he was caught by his own carelessness. >> he explained that t