An altercation at the Firebirds Wood Fired Grill restaurant at the La Encantada Mall in north Tucson led to the shooting, KGUN reported. It took place at 7:30 p.m., sheriff spokesman Cody Gress said in a news conference.
The shooting was contained to the restaurant, CNN reported. The shooting was not random, and all 3 people knew each other, KVOA reported. One handgun was used. Deputies did not make any arrests, and they are not looking for any suspects, according to Gress.