The shooting happened early last Thursday morning outside Club Onyx, located on the 2900 block of S Columbus Boulevard.
The suspected triggerman, 25-year-old Kyle Carter, was arrested on Friday morning.
Police say Carter was involved an argument with a 26-year-old male on the front porch, right after closing.
During the argument, police say Carter brandished a handgun and shot the victim in the neck.
Since then, the victim had remained on a ventilator in critical condition at Thomas Jefferson University Hospital. He ultimately succumbed to his wounds early Wednesday morning. The victim's identity has not yet been released
There has been gunfire outside this club before. Action News was there back in July 2010 when a man was critically wounded - shot in the neck in an attempted robbery in the parking lot. Then in December of 2010, two people were shot in the club's rear parking lot. They were listed in stable condition at the time.