story that his parents had been fighting. april had michael's dna under her fingernails. michael had scratches on his face, and if madison had shot them during the fight, where was the proof of that? >> no dna, no blood on madison. not on his clothes, not on his hands. so all the evidence points toward exactly what madison said, mom and dad were in the bedroom. >> if madison had committed this crime, if he'd shot both his parents at pretty close range, he'd have some blood on him. >> he'd have some forensic evidence on him to demonstrate he had fired a gun at a very close range. >> law enforcement was never able to lift a full print from the gun, and the only dna they found was april's on the trigger. and what about that head wound? the one a pathologist said made michael's death look like a homicide? >> i've consulted with a forensic pathologist who said he looked at the wound, and he