A suspect was taken into custody after four people were "executed" at a marijuana farm in Oklahoma over the weekend, authorities said. Wu Chen, 45, was arrested in Miami, Florida, just before 4 p.m. when a license plate reader flagged the vehicle he was driving, the Oklahoma State Bureau of Investigation said in a statement. Chen was apprehended without incident and is awaiting extradition to Oklahoma, where he is expected to face charges of murder and shooting with intent to kill, the agency said.