Former Ohio State running back Maurice Clarett turned himself in Monday night on charges of robbing two people at gunpoint in an alley behind a bar. His lawyer, Percy Squire, said his client would be jailed overnight and was set to appear in court Tuesday, where he planned to enter a plea of not guilty. Clarett was wanted on two counts of aggravated robbery since early Sunday, when police said he flashed a gun and demanded property from a man and a woman behind the Opium Lounge in downtown Columbus. Police said he fled with two men in a sport utility vehicle after he was identified by the bar owner, who happened to come out into the alley. No one was injured. The 22-year-old former Buckeye star, who helped the team win the national championship in 2002, turned himself in around 9 p.m. Monday at the county jail, Columbus Detective Art Hughes said.