Joseph E. Duncan III
Criminal
Serial killer sentenced to death for murdering four members of the Groene family, and 1-3 others.
His first recorded sex crime is when he raped a boy at gunpoint at age 15.
His connection to an earlier murder was found after he was arrested for the Groene murders, when bloggers noticed a resemblance between him and the composite sketch of the suspect in the earlier crime.
He did not marry before his conviction.
He committed his first rape at a young age, as did Ted Bundy.