It happened at approximately 9:25 a.m. on Thursday, Sept. 26 in Brentwood.
Suffolk County Police Third Precinct officers responded to 253 Barleau St. following a hang-up call to 911 from the location.
Upon arrival, officers found Rosemary Paul, 79, a resident of the home, deceased from a gunshot wound inside the house, police said.
Her husband, James Paul, 84, also a resident of the home, had also been shot and was transported to Southside Hospital in Bay Shore where he was pronounced dead.
Detectives determined James Paul shot his wife before shooting himself, police said.
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