On the evening of Friday, December 26, 2014, 28-year-old Mark Timothy Cox was found shot to death in a home on Archer Avenue in Elgin, South Carolina. A second man at the residence, 55-year-old Tyron Richardson, also died of gunshot wounds to the upper body; both were pronounced dead at the scene. The Richland County Sheriff’s Department was called just before 9 p.m. and treated the incident as a double homicide.

Investigators focused on the house near the Kershaw County line and, in the weeks after the killings, said they were trying to locate a vehicle seen at the residence around the time of the murders.

Anyone who remembers activity around Archer Avenue on December 26, 2014, or who has information about a vehicle seen near that house is asked to come forward.