A dispute outside a bike and scooter shop on Nostrand Avenue in Crown Heights escalated into a fatal shooting that killed 23-year-old Nicholas Isaac. The confrontation began with an argument between Isaac and another man in front of the store; the man left but returned about an hour later on foot, allegedly brandishing a gun and opening fire. Isaac ran into the shop trying to escape, but the assailant followed and continued shooting as Isaac tried to flee.

Isaac was taken to Kings County Hospital, where he underwent surgery and later died from his injuries. The suspect fled the scene, leaving his own scooter and taking another one.

Does anyone who was in Crown Heights that day or who knew Nicholas have information about the initial argument or the man who returned an hour later?