INDIANA (WOWO): A man who was once questioned as a person of interest in the murders of two Delphi teens, is back in Indiana.

Daniel Nations has pleaded guilty to unrelated sex offender charges.

Indiana State Police interviewed Nations in Colorado after he was arrested for attacking hikers with a hatchet last year. He just pleaded guilty in Johnson County, Indiana, to a felony charge of failing to register as a sex offender.

He’ll need to submit a DNA sample to the state Department of Corrections, thanks to a new law that expands the state’s DNA database of felons and those accused of a felony, which police say could eventually lead to an arrest in the Delphi case.