Prince George's County police said they expect that no charges will be filed against a Suitland liquor store clerk who Thursday night shot and killed an apparent robber.

Police said that a man walked into G. I. Liquors, at 6712 Suitland Rd., about 9:50 on Thursday night, picked up a six-pack of beer and carried it to the counter.

When the clerk asked the man if he wanted anything else, the man pulled out a handgun and demanded the money in the cash register, police said. The clerk complied, placing an undetermined amount of money in a paper bag, police said.

The man then pointed the pistol at the clerk and pulled the trigger, but the gun failed to discharge, according to police.

Police said witnesses told them that the man then turned to leave, but fumbled as he tried to open the front door. In the meantime, the clerk reached for a gun he kept under the counter and called for the man to stop.

When the man did not halt, the clerk fired one shot at him, hitting him in the head, police said.

William T. Nowlin, 26, of 12608 Memory Lane in Bowie, was pronounced dead about 30 minutes later at Malcolm Grow Hospital at Andrews Air Force Base.