An Atlantic City man faces up to 20 years in jail for weapon and drug possession charges. An Atlantic County jury found Marwin McKoy, 34, of the 100 block of Chesapeake Ave., Atlantic City, guilty of handgun possession offenses, and possession of heroin. Back in Aug. 2013, McKoy was found in possession of a loaded .22 caliber handgun and 20 bags of heroin. Sentencing will take place on Feb. 20 in the case.