Every time I watch this damn thing, I become increasingly obsessed with one name: John Mark Byers. He's the stepdad of one of the murdered children, and I'm telling you, he's one of the scariest, strangest (and okay, funniest) trainwrecks of a human being. No way he didn't do it.

Things that would give most detectives pause: During the filming of the documentary, Byers gave a knife to the filmmakers as a gift. He said it was new. Thinking it odd, they turned it over to the state. Testing revealed that the knife had blood hidden in the hinge... blood that matched both Byers and his son. Byers denied that he ever used it. Then he changed his story, saying he carved up a deer with it. And oh yeah, did he forget to mention that he cut his thumb? His son, by the way, was the only child of the three who was sexually tortured with a knife. Byers strongly denied any involvement, but admitted to beating his son with a belt just hours before he died. Not long after the trial, his wife met an equal fate. Mysteriously, she died. The cause of death on the autopsy report? "Undetermined," in spite of evidence of blunt trauma and suffocation.

con't