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STATE COLLEGE, Pa. (CBS/AP) – A fourth person has died following a shooting near Penn State University. Gunfire erupted around 10:30 p.m. Thursday at a restaurant inside P.J. Harrigan’s Bar & Grill on Atherton Street in State College.

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The bar is located inside the Ramada Hotel & Conference Center and about two miles from Penn State University’s main campus.

Jordan Witmer is accused of killing 19-year-old Steven Beachy and his father, Dean Beachy, inside the bar.

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Police say the older Beachy stepped in to break up an argument between Witmer and his ex-girlfriend, Nicole Abrino, when Witmer pulled out a gun and opened fire.

Abrino was also struck. She remains hospitalized and her condition is not known.

Police say Witmer then ran off, broke into a random home, and killed 83-year-old George McCormick, before turning the gun on himself.

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(© Copyright 2019 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)