Woman allegedly injected foreign substance into neck of random Walmart customer before she and her armed companion fought cops in parking lot

Jennifer Keenan and Jay Carswell fought cops outside a Walmart in Duluth, Georgia, after Keenan stuck a syringe in a customer, police said. (Mugshots: Duluth Police Department)

Jennifer Keenan and Jay Carswell fought cops outside a Walmart in Duluth, Georgia, after Keenan stuck a syringe in a customer, police said. (Mugshots: Duluth Police Department)

Two people allegedly fought the cops after one of the suspects stuck a syringe into a customer at Walmart.

Jennifer Keenan, 55, is charged with aggravated battery, possession of a firearm or knife during the commission of any crime, and willful obstruction of law enforcement officers. Jay Carswell, 73, is charged with willful obstruction of law enforcement officers.

According to police documents, officers responded to the Walmart on Pleasant Hill Road in Duluth, Georgia, on Aug. 10. Security said that a man had come up to customer service saying that a woman wearing a yellow plaid shirt stabbed him in the neck with a needle and injected him with a foreign substance.

When police arrived, security pointed out the suspect vehicle — a blue Ford Expedition parked at the side of the building.

Police approached a man was in the driver seat. They said it was Carswell.