Lexington police are looking for the man behind an attack on the street overnight. Police say the victim fought the man off and got away with his gun, giving officers some key evidence. It happened early Friday morning on Ohio Street near Fifth Street.  The victim told police he was walking when a man put a gun to his head and threatened to kill him. The victim then wrestled the gun away and fought back, leaving both of them injured. Officers were called to St. Joseph's Hospital where the victim showed up at the emergency room with a cut to the face and a hand injury.