Mitchell Gonzales, 22, was killed in Denver on May 20, 1987. He and Jeffrey E. Sheffield had spent part of the evening drinking and using drugs with Michael Tenneson, also known as Michael Leith, and fell asleep inside a Denver residence. While the two men slept, Tenneson shot each of them in the head, and both victims were found dead at the scene.

After the killings Tenneson took Sheffield’s automobile and fled, an act that linked him to the victims and to subsequent criminal charges. Authorities later arrested him under the name Michael Leith; prosecutors charged him with two counts of first-degree murder plus aggravated robbery and aggravated automobile theft. Tenneson was tried in March 1988 and convicted on both murder counts and the property offenses, establishing the deaths as deliberate killings.

Does anyone have memories of Gonzales, Sheffield, or that Denver neighborhood in 1987 that could shed more light on the night they died?