A man pleaded guilty in a sexual assault cold case and it comes from someone already serving time.

Shad Goldthwait pleaded guilty to sodomy, Tuesday. He's been serving a 20-year sentence for the past two years, for sexually abusing two children in Oswego County.

Tuesday's plea stems from accusations that he also lured a 10-year-old girl into the woods off of Bear Road in Clay and sexually assaulted her.

The case was solved through advances in DNA technology.