Lois Mildred Clendenen Johnson, 59, and her husband Emmett Alexander Johnson, 62, were found bound and murdered at a rest stop near Ely, Nevada, on September 18, 1974. The slayings occurred in a remote location and were linked to a wider series of killings that moved across several states.

Investigators later connected the Johnsons’ deaths to Paul John Knowles, known as The Casanova Killer. By the time he reached Nevada he had already killed elsewhere while traveling in a stolen vehicle; authorities later confirmed 18 murders connected to him, though he claimed at least 35. Knowles was captured in November 1974 after being recognized by a Florida Highway Patrol trooper, then shot and held until arrest. He died on December 18, 1974, after obtaining a sheriff’s handgun during transport and being shot during the ensuing struggle.

Anyone who knew the Johnsons, saw them in Ely in September 1974, or has information about that rest stop is asked to come forward.