The incident at the Sunoco in the 5500 block of North 5th Street was captured by a surveillance camera on April 7.
The video shows 51-year-old Robert Barnes being pummeled by teens with a hammer, a piece of wood and punches, after police say a 10-year-old boy told his mother he got into an argument with Barnes.
The attack left Barnes in a coma.
The boy's mother, 34-year-old Aleathea Gillard, has been charged in the case, along with 24-year-old Shareena Joachim.
Three juveniles were also arrested and charged with attempted murder, aggravated assault, simple assault and related offenses.
[Ads /]
Police say those charges could be upgraded to murder after the district attorney returns from the Thanksgiving holiday.