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STATE COLLEGE, Pa. (AP) — Authorities say they can find no reason a drunken gunman opened fire at a Pennsylvania hotel bar, killing two men and wounding a woman before breaking into a home where he fatally shot another man before killing himself.

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Centre County District Attorney Bernie Cantorna said Wednesday police completed their investigation into the January shooting that happened near Penn State’s campus.

Centre Daily Times reports authorities said 21-year-old Jordan Witmer and friend Nicole Abrino were at P.J. Harrigan’s Bar & Grill in State College. Abrino said Witmer said he was going to the bathroom and when he returned, he shot Abrino in her chest.

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Abrino told authorities there were no red flags regarding his behavior prior to the shooting.

Cantorna said Witmer’s blood alcohol content was three times the legal limit.

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