DISCOVERY BAY — The Contra Costa Sheriff’s Office has identified a suspect sought in connection with last weekend’s homicide, authorities said Wednesday.

Sheriff’s deputies have an arrest warrant for Brayan Zavala, 19, of Antioch. Zavala is described as Latino, 5-foot-8, and 130 pounds, with black hair and brown eyes, and is believed to be driving a silver 2005 Mercedes Benz C240 sedan with California license plate 7TJM018.

During a dispute over apparently reckless driving in a Discovery Bay neighborhood, detectives with the sheriff’s department say Zavala pulled out a gun and fatally shot 48-year-old resident Bradley MacHugh.

Anyone who sees Zavala should consider him armed and dangerous, and should not approach him, but should call the sheriff’s investigation division at 925-404-4200, an anonymous tip line at 925-313-1166 or 866-846-3592, or email tips@so.cccounty.us.

Contact George Kelly at 408-859-5180.