Davell Mathis, a 19-year-old Black man, was found dead at a residence on Detroit’s southwest side on October 20, 2012. The location given for the killing was 3535 South Liddesdale Street in the Boynton neighborhood near the city’s industrial corridors. Authorities listed Mathis as homicide number 312 for 2012 in the city’s fatal violence tally.

Police responded to the scene on that Saturday and investigated the death as a homicide.

If anyone knew Davell, saw activity around South Liddesdale Street that weekend, or has information that could shed light on his killing, please come forward.