Police are investigating a shooting at the Days Inn hotel in Hicksville.Officials say one man was shot in the arm outside the hotel's club, Olivium, around 2:30 a.m. Friday. Police say the incident occurred after a fight broke out inside the club.According to police, the club was holding a college night. Sources tell News 12 Long Island that college nights at the club are popular with students from Hofstra University and Nassau Community College. Police say there are two suspects in custody for the shooting.