An Egyptian college student who videotaped himself showing how to turn a remote-controlled car into a bomb detonator has pleaded guilty in Florida to supporting terrorists. Ahmed Abdellatif Sherif Mohamed is one of two former University of South Florida students arrested in South Carolina last August. He pleaded guilty at a hearing Wednesday in Tampa. The video was found on a laptop computer in the car Mohamed was driving when deputies pulled him over near Charleston. Deputies say they also found pipe bomb materials in the trunk.