Diego Martinez, 20, was shot and killed on December 23, 2020, in the garage of a friend’s home in the 4300 block of Onyx Drive in Carrollton, Texas. Investigators say the house was targeted after the friend had advertised marijuana for sale at that location shortly before the shooting, and the killing occurred during an apparent robbery.

Three people were later arrested and charged in connection with the killing: Roman Casas, 23, of McKinney; Marqell Davis, 31, of Dallas; and Briana Orikpete, 27, of Dallas. Each was charged with murder and held in the Denton County Jail on a $1,000,000 bond. Police used cell phone data analysis and witness testimony as part of the investigation that identified and located the suspects.

Diego’s death underscores the deadly consequences that can follow robberies and related violence. If anyone knew Diego, was present at the Onyx Drive residence that night, or has information about the incident, please come forward.