It happened just before 7:30 p.m. in the parking lot of the store along the 900 block of McDade Boulevard in Collingdale, Pennsylvania.
At the scene, police say they found the gunshot victim, who was pronounced dead a short time later.
Her identity has not yet been released. The Action Cam did capture what appeared to be the victim's loved ones at the scene.
Authorities say a confrontation in the parking lot may have been what sparked the deadly shooting.
According to investigators, a person of interest was being questioned by police after the incident.
No further information has been released on this person.
Action News spoke with several neighbors at the scene, who said they were shocked to see gun violence in a typically quiet neighborhood.
"It's kind of strange to have this kind of thing happen out here, especially around this neighborhood," said resident Rickey Hanks. "The most noise I get is a train every five hours. Very sad, and you know, all the best to the family."
Anyone with information on the shooting is asked to contact the police.