Bangor police are looking for a man who reportedly beat another man with a handgun. It happened Thursday night on Ohio Street. Police say a 27-year-old man was struck several times in the head. He is expected to survive. A backpack was taken from the victim.The case is being investigated as an armed robbery. The suspect was described to police as a white man wearing a brown jacket. If anyone has information, call the Bangor Police Department at 947-7382.