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Couple dead in Port Jefferson murder-suicide

Officers responded to 135 Oakwood Road just after 11 a.m. for a welfare check call after 63-year-old Valerie Kopetic failed to appear at her job that morning.

News 12 Staff

Feb 9, 2026, 10:08 PM

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Suffolk County Police Homicide Squad detectives say a murder-suicide occurred in Port Jefferson Monday morning.

Officers responded to 135 Oakwood Road just after 11 a.m. for a welfare check call after 63-year-old Valerie Kopetic failed to appear at her job that morning.

When officers arrived, they discovered two residents of the home dead from gunshot wounds.

An investigation determined that 68-year-old Paul Trefimovich killed Kopetic, his domestic partner, and then fatally shot himself.

Detectives are asking anyone with information to call the Homicide Squad at 631-852-6392.

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