Police officials wouldn't speculate on a potential motive when asked about the workplace connection Tuesday. "Do not approach if you see him; please call 911 immediately," Nassau County police warned. "If you you have ANY information regarding this person of interest, please call Nassau County Crime Stoppers at 1-800-244-TIPS (8477)." It wasn't immediately clear if the victims were targeted specifically but all appeared to be employees with Stop & Shop, investigators said. The victim who died was a man around 49 years old. Two other victims were taken to area hospitals; they were said to be conscious and alert and assisting law enforcement. Their identities haven't been released and the nature of their injuries wasn't known.