Morton Rosenfeld, 43, was found beaten to death in the basement of an Estes Park, Colorado, apartment; his body was discovered May 19, 1979, with the incident dated May 18, 1979. The victim was a white male staying at that address when the fatal assault occurred.

Larimer County Sheriff’s investigators identified a suspect early in the inquiry and that person failed a polygraph, but authorities concluded the available evidence was insufficient to file charges. The case went cold; detectives revisited it in 2003 and traveled to California to re-interview the original suspect, who by then lived out of state and declined to cooperate. No arrests have been announced and the investigation remains open and unsolved.

Did anyone in Estes Park or the surrounding area have contact with Morton around May 18, 1979, or recall unusual activity at that apartment?