It happened around 10 p.m. Sunday on Grant Street in East Northport, where Suffolk County police were called for a domestic incident.
When officers arrived, police say 26-year-old resident Jeffrey McClure pointed a gun at officers, who then exited the home.
They say McClure ultimately made his way to the roof of the home and subsequently ignored commands to drop the gun, which appeared to be a hunting rifle, while threatening to shoot officers.
McClure then pointed the gun at officers and was shot, police said. He was pronounced dead at the scene by rescue personnel.
Authorities say subsequent investigation determined the gun was a pellet gun.
The investigation is ongoing.
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