They say anyone can make it in show business – so long as you take care to keep certain things out of your résumé. A few weeks ago, Tommy Moore, founder of Where’bouts, a location-scouting company, was walking the streets with a Nikon D-1, “looking for interesting textures and colors to put models in front of,” he remembers. He found a brilliant blue wall flanking Aquagrill in SoHo and was searching for someone to pose in front of it for some sample shots when along ambled a stranger: short, dark, and conversational. “He seemed to be a smart guy,” Moore says. “We talked about cameras. Then he picked a cigarette butt off the street. So I told him if he posed, I’d buy him a pack of cigarettes.” The shoot went without incident until the stranger “started cracking jokes, saying things like ‘So when do you have to get these pictures back to the FBI?’ I sort of laughed it off, and then he’d ask again, ‘You’re with the police or the FBI, right?’ ” He finally asked to see Moore’s I.D., “which I showed him.” The next week, Moore spotted a familiar face in black-and-white at the newsstand – it was Vincent Johnson, the confessed Brooklyn Strangler – and suddenly the photographer found himself with a tale for his grandchildren. “I took the Post home and compared it to the pictures I took, and it was the same guy,” Moore says. “It was sort of spooky.”