Suffolk Police received a 911 call reporting a man shot in the backyard of 22 Judith Drive in Coram.
When police arrived, they found Luis Vargas, 21, suffering from a gunshot wound to the chest.
Vargas was transported to Stony Brook University Medical Center by Coram Fire Department ambulance.
He was pronounced dead shortly after arrival.
Anyone with information is asked to call the Homicide Squad at 631-852-6392 or Crime Stoppers at 1-800-220-TIPS.
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