Three Brooklyn men have been killed by the same gun in the past four months, leading police to suspect a serial killer, the New York Daily News reports. All three men owned stores in Brooklyn, all were killed in their shops around closing time, and all were of Middle Eastern descent. In another creepy similarity, the address for each store includes the number 8, leading police to wonder if the killer is interested in numerology. The murderer has left shell casings at each crime scene. "It's like he's telling us, 'It's me again,'" a police source says.