Harvey Marcelin, an 83-year-old serial killer who spent most of his life behind bars for killing two of his ex-girlfriends is being eyed in the murder of another woman whose dismembered body turned up in Brooklyn last week.

Harvey Marcelin, who presently identifies as a transgender woman, was last week charged with concealment of a human corpse after she was allegedly caught on surveillance video dumping human remains near her apartment, according to The New York Post.

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A search warrant turned up “a human head” in Marcelin’s home in Cypress Hills, according to a criminal complaint, and sources said cops also recovered electric saws she bought at Home Depot.

The gruesome case came to light last week when the torso of Susan Layden, 68, was recovered from an abandoned shopping cart at the corner of Pennsylvania and Atlantic avenues — less than a block from Marcelin’s apartment.

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A few days later, Layden’s leg was discovered a few blocks north and her arm is still missing.

The octogenarian spent more than 50 years in state prison on murder and manslaughter convictions dating to 1963, state prison records show.

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That rap stemmed from the April 18, 1963, shooting death of her live-in girlfriend, Jacqueline Bonds, inside the couple’s Manhattan apartment. It is reportedly said that Marcelin snapped, and shot Bond three times when she said she was leaving her.

Marcelin was sentenced to 20 years to life that same year but was freed on lifetime parole in May 1984.

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The killer was free for less than a year before she was busted again for fatally stabbing another live-in girlfriend — stuffing her body into a bag she’d dumped on the street near Central Park, sources and court records said.

She was convicted of first-degree manslaughter in that case in 1986 and sentenced to a six-to-12-year term in prison.

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Marcelin was denied parole several times, sources said, and admitted at one hearing that she had “a problem with women.”