COLOMBO 3 A man went berserk at a police station in eastern Sri Lanka Sunday and killed a civilian and three constbales before being shot dead, local officials said. The man entered the police station in the coastal town of Kalmunai responding to a complaint against him and later grabbed a rifle from a constable and began shooting, officials said. He was shot by police but he managed to kill another civilian and three constables and wound four others, including three women constables, officials said.