(CNN) -- A man apparently angry over a poor performance evaluation entered an Ohio State University maintenance building early Tuesday and opened fire, killing a manager before turning the gun on himself, police said. Larry Wallington, 48, a building services manager at the OSU Maintenance Building, was pronounced dead at the scene of the 3:30 a.m. ET shooting, Ohio State University Police Chief Paul Denton said. Wallington was a 10-year university employee, he said. Authorities found suspect Nathaniel Brown, 51, a custodial worker, suffering from a self-inflicted gunshot at the scene, Denton said. He was transported to the Ohio State University Medical Center, where he was dead on arrival.
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NEW: Authorities find suspect Nathaniel Brown, 51, suffering from self-inflicted gunshot
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NEW: Police: Worker apparently angry at poor job review also kills manager, wounds another
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"Classes will be held and normal work schedules are in effect," university Web site says
Officials would not say when @placeholder received the review, who gave it to him or provide further details, citing the ongoing investigation.