SOUTH PHILADELPHIA - District Attorney Larry Krasner on Friday announced charges against one of several men suspected of attempting to rob a South Philadelphia gunshop earlier this week, only to be met by a gun-wielding owner who fatally shot one and wounded another.Khaleef Brown, 22, has been charged with robbery, burglary, conspiracy and related charges stemming from his alleged involvement of a group armed robbery of the Firing Line gun store located on the 1500 block of South Front Street.MORE: Armed burglary suspect fatally shot by gun shop's owner in South Philadelphia, authorities sayInvestigators say Brown and three other men arrived at the Firing Line around 4 a.m.