Mark Wallace, a 27-year-old white man, was killed on June 23, 1985, after seeking shelter from a thunderstorm at the home of Robert Berdella in Kansas City, Missouri. Wallace had done yard work for Berdella and was found in a tool shed; Berdella invited him inside and gave him a drink laced with a sedative. After Wallace was incapacitated, Berdella restrained him and subjected him to about 24 hours of torture, including electrocution, before Wallace died from a combination of the drugs, gagging, and asphyxiation.

Wallace’s disappearance remained unexplained until April 1988, when a survivor escaped from Berdella and alerted police. Berdella confessed to multiple murders, including Wallace’s, and was later convicted and given life without parole. Berdella died of a heart attack in Missouri State Penitentiary in October 1992.

Does anyone have additional information about Wallace’s life, where he lived, or contacts who might still have memories to share?