Police say a 35-year-old man was fatally shot in the chest early Thursday morning outside Temptations nightclub in Flatbush. Police were combing the crime scene hours after the murder for bullet shell casings that could lead to an arrest. Authorities believe it may have been a drive-by or close-range shooting.Officials say the nightclub was crowded Wednesday night because of a concert and security was tight. Some club attendees say that the victim may have been celebrating his birthday before he was shot. The victim was pronounced dead at King?s County Hospital early Thursday morning.