interview randy snead, the officer who took robert's confession. the closest we got was the current chief of police of albemarle county, colonel steve sellers. he wasn't in office when steve -- snead was a detective but -- you've talked to him, what's your sense of how he feels about it? >> i think he acted in the best interests. i think there wasn't a bit of malice in his actions. i think he had a very strong relationship with robert davis. >> but this was interesting. chief sellers did not support snead's interrogation. not at all. >> i will say this. i believe that the confession is an unreliable confession. >> what's more, the chief updated police methods when he took over to help prevent the kind of interrogation that ended up in robert's confession. >> i can't tell your mom that i can save you from the ultimate. >> as you look at it, what are things that would not be done? >> using terms like "the ultimate punishment." length of the interview.