A man was shot overnight in San Antonio by a night club security guard after he allegedly tried to run over the security guard with a vehicle. It happened at I-35 and 410. The man had been in a fight earlier at the night club and the security guard was in the process of driving the woman to another location when it happened. Police say the man was shot in the head and is in critical condition. The security guard and woman were not hurt, but are being questioned by police.