Man accused of killing estranged wife, stabbing himself in Farmingville

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A 57-year-old man named Marcos Marques-Leal is accused of fatally stabbing his estranged wife Adriana Barbosa, 46, at their home in Farmingville, Long Island. Marques-Leal also allegedly stabbed himself and injured a teenage relative who was present during the attack. He has been charged with murder, criminal contempt, and endangering the welfare of a child.

Why it matters

Domestic violence incidents like this one are tragically common, with estranged spouses often the targets of violence. This case highlights the need for better resources and support systems to protect victims of domestic abuse and prevent such tragedies from occurring.

The details

According to police, they responded to a domestic call at the home on Granny Road around 8:15 pm on Thursday and found Adriana Barbosa with fatal stab wounds. She was pronounced dead at the hospital. Marques-Leal also suffered injuries from the incident and was taken into custody. A teenage relative who was present during the attack also sustained non-life-threatening injuries.

• The incident occurred around 8:15 pm on Thursday, February 13, 2026.

What’s next

Marques-Leal will be arraigned on the charges of murder, criminal contempt, and endangering the welfare of a child at a later date.