6 years after disappearing, their skeletons were discovered. 35 years later, the killer remains unknown.

BRAINERD, Minn. — On the afternoon of Saturday, Dec. 15, 1990, rancher Eldon Wiese was bulldozing an abandoned house on his property when he discovered something he never could have anticipated.

Hidden beneath the building’s floorboards were two human skeletons.

Wiese contacted the authorities, and two days later, the Minnesota Bureau of Criminal Apprehension used medical and dental records to identify the remains as Clarence and Marjorie Paulson, according to a 1990 article in The Country Echo.

Clarence and Marjorie Paulson were a father and daughter who vanished six years prior. Discovering the bodies answered several questions about the case, which had previously been entirely cold, but it raised even more.

Thirty-five years later, investigators still believe the Paulsons were victi