Deborah Franklin is suing the city government and officer Wende Kerl, who shot Danquirs Franklin on March 25, 2019.
When Kerl and a second officer arrived, Franklin was distraught and kneeling in the parking lot next to the car of the store manager, Timothy Grier, the suit says.
The lawsuit says Kerl and the other officer repeatedly and loudly ordered Franklin to "drop the weapon" - doing so more than 20 times in less than 30 seconds, according to the lawsuit.
Kerl's body cam video shows Danquirs Franklin slowly bringing the gun out of his clothing, holding the top of the weapon by his thumb and forefinger, with the barrel pointed toward him and the handgrip coming into view first, the lawsuit says.
The lawsuit says neither officer attempted to provide first aid to stop Franklin's bleeding, focusing only on retrieving the gun, and Franklin lay unattended for at least eight minutes before any first aid was attempted by paramedics.