Robert McCann, 52, was one of three people found shot to death on February 13, 1978, at a home in a semi-rural area just outside Columbus, at 4187 Ongaro Drive in Franklin County, Ohio. His 77-year-old mother, Dorothy Marie McCann, and his 26-year-old girlfriend, Christine Herdman, were also found dead at the scene. Victims had been shot multiple times, primarily about the face and head, and shell casings from a .22-caliber gun were recovered.

McCann’s killing was later linked to a string of attacks known as the .22-Caliber Killings that affected Columbus and nearby areas during late 1977–1978. Investigators attributed those murders to brothers Gary and Thaddeus Lewingdon; both were arrested, convicted of multiple counts of murder, and sentenced to life imprisonment in 1979. The crimes were noted for their brutality and for initially lacking a clear motive.

Did anyone in the community have contact with Robert, Dorothy, or Christine around February 13, 1978, or recall unusual visitors to the Ongaro Drive home?