Man arrested in Grantville suspected of killing in Shelltown three years ago

A San Diego Police cruiser FIle photo by Chris Stone Times of San Diego A suspect was behind bars Wednesday following his arrest in connection with a shooting that killed a man nearly three years ago in Shelltown Marcanthony Alexander Valencia was arrested at about p m Monday at his Twain Avenue workplace in Grantville for allegedly gunning down Mario Galvez of San Diego on Sept according to police Shortly before p m that day patrol officers responding to reports of gunfire in the block of Una Avenue ascertained Galvez outside his car suffering from gunshot wounds to his upper body and head Paramedics took the victim to a hospital where doctors pronounced him dead Police have disclosed no suspected motive for the shooting Detectives identified Valencia as Galvez s alleged killer via the use of mechanism and tenacity San Diego police reported Valencia was booked into San Diego Central Jail on suspicion of murder owning an unserialized gun and illegal possession of an assault weapon