Web blog site of Joesph Duncan, the guy who killed the Idaho family and molested their children:

Fifth Nail

He openly mentions having done this before since he's been out of jail, more than once, not sure if he just molested more kids or actually killed people.

I can't believe the police and the people who followed along on his blogger entries didn't report him earlier. They didn't even know who killed the family for some time, and this guy was communicating with the local police chief via e-mail back in February.