Bangor Police spent the day Friday investigating a crime at an apartment on Ohio Street.They say a 53 year old man was assaulted in his home sometime overnight. He was found by a friend Friday morning.Police say it looks like he suffered blunt force trauma. He was taken to Eastern Maine Medical Center. No word on his condition, but we’re told his injuries are not life threatening.Police believe the victim knew his attacker.They’re now looking for the suspect. If you have any information, or saw anything suspicious around that apartment on the corner of Ohio and Hudson Streets, call police at 947-7384.