Mariano Cardenas Santos, a 64-year-old Antioch resident, was found fatally shot in the driveway of a residence on Cashew Court near Almondridge Park on the evening of October 22, 2017. Officers responding to the scene transported him to a hospital, but he died of his injuries the following day.

Santos was one of three men killed in separate shootings in Antioch within one week. Police have not identified suspects or a clear motive, and investigators say the case has been hampered by a lack of witnesses and concrete leads. No arrests have been announced and the investigation remains open.

If anyone saw activity near Cashew Court around 6 p.m. on October 22, 2017, or has information about this shooting, please contact the Antioch Police Department.