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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.

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.

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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