A Los Angeles county sheriff's deputy has pleaded guilty to his role in a theft from a legal marijuana business that netted more than half a ton of marijuana and more than $600,000 in cash. Marc Antrim was off duty but wearing a sheriff's office jacket and driving a sheriff's office SUV when he and his partners pulled up to the firm's security gate and showed guards a fake warrant. They locked the guards up and began to rob the place. They were interrupted by Los Angeles Police Department officers patrolling the area. But Antrim was able to convince cops he was serving a search warrant on the business.