Joseph Landgraf was found dead in Dayton, Ohio, on December 3, 1980. The case, investigated by the Dayton Police Department with support from the Ohio Bureau of Criminal Investigation, remains unsolved. Public details about the circumstances of his death are limited.

Dayton’s Cold Case Homicide Unit continues to work the file, and authorities say they welcome tips from the community. Investigators have highlighted that even small pieces of information can be important in long-unsolved cases that lack witnesses or physical evidence.

If anyone has information about Joseph Landgraf or remembers anything from around December 3, 1980, please contact the Dayton Police or the Cold Case Homicide Unit.