david dooley was on trial for the murder of his coworker, michelle mockbee. king him to the crime but in her closing argument, the prosecutor laid out a provocative theory suggesting david killed michelle because she thought he was falsifying his timecards. the jury was about to render its verdict, but the twists in this case were just getting started. here again is josh mankiewicz with the early shift. >> after waiting a full day without hearing a verdict, michelle mockbee's siblings were on pins and needles. >> the first day comes and goes and there's no verdict. were you guys worried at all? >> yes, it was pretty agonizing waiting. >> then, after delivering for some 16 hours over two days, word came from the jury. >> we the jury find the defendant guilty. >> guilty for the murder of michelle mark b. -- michelle mockbee. >> i did not. i did not kill her. >> david dooley was sentenced to life in prison. he filed an appeal. >> you know getting convictions reversed on appeal is a longshot. >> but, when you're innocent, it does happen and it will happen. >> dool