A university teacher in Georgia has been accused of killing an 18-year-old student who was fatally shot while sitting in a car.

The Carrollton Police Department said in a press release that Richard Sigman, 47, is charged with murder and aggravated assault in the shooting death of Anna Jones, 18. Police said they believe Jones was killed when Sigman shot himself into a parked car after an argument with a man at a pizza parlor. The shooting happened just after midnight on Saturday.

Police said a man told security Sigman threatened to shoot him during an argument and security then asked Sigman to leave.

Investigators believe that as Sigman left, he went to the parking deck and began shooting at a parked vehicle, hitting Jones. Friends drove Jones to a hospital, where she was pronounced dead, police said.

It’s not immediately clear if Sigman has an attorney speaking on his behalf.

The University of West Georgia told news outlets in a statement that Sigman’s employment has been terminated. A current course catalog lists Sigman as a lecturer in business administration.

The university said Jones was a student at the university.

“On behalf of the university, we would like to express our deepest condolences to Anna’s family and many friends. We know this news is difficult to digest and affects many members of our university community. We ask that you keep Anna’s family, friends and everyone whose thoughts have been touched by this tragedy at this tremendously difficult time,” said University of West Georgia President Dr. Brendan Kelly, in the statement.

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