Charles R. Elmquist, 34, of Iowa City was last seen November 16, 1979, and vanished under mysterious circumstances. Elmquist was disabled and required assistance with self-care, a factor that led authorities to classify him as endangered missing. His 1961 blue GMC van was found the next day, abandoned in a storage lot at the University of Iowa Hydraulics Laboratory, but there was no sign of Elmquist and extensive searches did not locate him.

Elmquist was described as 5 feet 10 inches, about 125 pounds, with brown hair and blue eyes. Investigators have been unable to determine what happened to him after he disappeared, and the Iowa City Police Department continues to seek information in this decades-old unsolved case.

Did anyone living in Iowa City in November 1979 see Elmquist, his van, or anything unusual near the Hydraulics Laboratory storage lot?