McQueary disappeared with his friend, Johnny Hundley. The boys were last seen at the Frisch's Mainliner in Fairfax, Ohio on October 15, 1964. Neither of them have been heard from again.

Three years after Hundley and McQueary disappeared, a seventeen-year-old Marine stationed in California confessed to their murders. He had lived in Fairfax in 1964 and said he stabbed the boys to death and buried their bodies. The suspect later recanted his statement and said he'd made up the story to get out of the military. He passed a polygraph and still maintains his innocence.

Little evidence is available in McQueary and Hundley's disappearances. Authorities believe their bodies are probably somewhere in the Fairfax area.