Remains unearthed at serial killer's "house of horrors" 41 years ago identified as missing teenager Theresa Fillingim

Investigators have confirmed that remains unearthed in a Florida junk yard 41 years ago match a missing teenager, the victim of a serial killer now imprisoned for life in California, sheriff's officials said.

Hernando County Sheriff's investigators, with an assist from the University of North Texas and Virginia-based DNA technology company Parabon Nano Labs, identified Theresa Caroline Fillingim as the third of four bodies uncovered in April 1981 from what neighbors referred to as a "house of horrors."

It took weeks for excavators and deputies to find the four bodies in a sprawling junkyard on the property of Billy Mansfield Jr. in Spring Hill, sheriff's officials said. Only two of the female victims were quickly identified.