the new trial granted, we wanted to hit that head on. what that man did actually was throw something in the garbage can right beside the door. that guy was never identified? never identified. reporter: for heck, the heart of the case was that david dooley was the only one to leave the warehouse that morning. this was a bloody, violent murder. they would be covered in blood. there were no bloody clothes found on the scene. whoever did it left and when you looked at the video camera, he s the only one who left. reporter: one of the things that could have been covered in blood. dooley s steel toed work boots, required footwear at the warehouse. heck told the jury dooley might well have gotten rid of his boots to cover up the crime. where are his boots? they searched his house, his garage, his feet, his truck. and these were never found. reporter: so, did dooley leave work to check on his wife, or to get rid of bloody evidence? david dooley s statement was that he went home