Moore police officers first responded to reports of an active shooter at Vaughan Foods, located at 216 NE 12th St., just before 4:30 p.m.


According to police, 30-year-old Alton Nolen entered the warehouse and stabbed the first two people he came in contact with. One female victim died at the scene, and the other was transported in critical condition. Nolen was then shot multiple times by an off-duty deputy who works security at the plant. 

Police believe the incident was the result of workplace violence and not a domestic situation.

Oklahoma Department of Corrections online records show Nolen's criminal history dates back to 2011, including possession of a controlled substance, escape from detention and assault and battery on a police officer.

Nolen was transported to OU Medical Center via ambulance in unknown condition. The two women have not been identified at this time.

Thursday night, sources told News 9 the reserve Oklahoma County deputy who shot Alton Nolen was Vaughan Foods Chief Operating Officer, Mark Vaughan. The identity of the off-duty deputy has not been confirmed by the Moore Police Department.