Police say a man walked into a Brooklyn restaurant and struck three men in the head with a hammer, killing one and critically injuring the other two. It happened at the Seafood Buffet in Sheepshead Bay just after 5 p.m. Tuesday (2200g). Police say the victims worked at the restaurant. A 34-year-old was pronounced dead at the hospital. A 60-year-old and a 50-year-old remain in critical condition. Police say the suspect is in custody. Charges are pending.