william macello, made a startling discovery. blaine hodges didn't have any soot in his lungs or breathing passages, which would have been present had he set the fire before killing himself. and blaine's body revealed even more telling information. >> mr. hodges showed signs of what we called decay, which were more consistent with his having been dead for many, many hours or even days when compared to the others. >> i thought at first that he was just pulling my leg, because i had known him so long. nen when he said, barry, he said, "i'm serious." >> there was no way blaine hodges could have killed his family if he was already dead. >> that would be apparent to anybody who had his eyesight. >> that forensic determination from the autopsy enabled the police to know, we don't have a murder-suicide. you know? the girls couldn't have shot themselves through the head twice. teresa could not have strangled herself and set herself on fire. >> in order to buy time, police did not reveal any of these forensic details to the media or to fa