A sheriff's deputy is dead and a suspect is in custody after an execution style killing Sunday morning in Stanislaus County.

Deputy Dennis Wallace was shot twice in the head Sunday morning after requesting assistance for a stolen car.


According to the sheriff's department, around 8:30 a.m. Wallace was patrolling the Fox Grove fishing access area, just outside of Hughson, when he informed dispatch he was checking on a suspicious van. Moments later, dispatch informed Wallace the van was a reported stolen, at which point he requested back-up.

Deputies and dispatch attempted to contact Wallace, but were unsuccessful. An assisting deputy arrived on scene within five minutes of Wallace requesting back-up only to find him down. Wallace was transported to the hospital where he died from his injuries.

David Machado was identified as the suspect in the original stolen van call. About 20 minutes after the shooting of Wallace, the sheriff's department received a call of a carjacking in Keyes. The victim of the carjacking identified Machado as the suspect. Both stolen vehicles are in the sheriff's custody.


Around 1 p.m., Machado surrendered to law enforcement in Tulare County.

Stanislaus County Sheriff Adam Christianson said Machado was arrested in Lindsay after he tried to steal the purse of a woman at a convenience store. Christianson says the woman fought back against 36-year-old suspect, who ran from the scene, and called Lindsay police. Officers chased after Machado and took him into custody without incident.

Christianson said officers in Lindsay, 150 miles south of Modesto, didn't initially recognize Machado as the suspect. Once he was in custody, Machado was identified through tattoos and a photograph. Stanislaus County investigators are on their way to Tulare County to try and get a statement from Machado.

Christianson described the killing as "an execution," adding that no peace officer should be killed in the line of duty."

“Our thoughts and prayers are with Deputy Wallace’s family, friends, and the men and women of our Sheriff’s Department,” Christianson said. “The response by our allied agencies in and near Stanislaus County has been outstanding. The people in our community have shown their support and we’re grateful in ways we could never expect.”