A heartless killer who beheaded his mentor after stealing nearly $400,000 from him to impress his French lover told a Manhattan judge that he should spend the rest of his life behind bars.

According to the New York Post, convicted killer Tyrese Haspil was slapped with a 40-years-to-life sentence in the 2020 Lower East Side murder and decapitation of tech CEO Fahim Saleh after he bizarrely broke with his attorney in a dramatic moment that shocked the court.

Haspil had listened to his lawyer argued in court Tuesday for nearly an hour that the 50-year-life sentence prosecutors wanted for him was way too harsh — then the defendant asked to speak.

“Unlike my counsel, I don’t think anything less than life without parole would be appropriate,” he told Judge April Newbauer, stunning the courtroom.

The shocking announcement marked an end to the gruesome case and often strange court proceedings.

Haspil, 25, was charged with second-degree murder in the slaying on July 13, 2020, inside Saleh’s $2.2 million East Houston Street apartment, according to police.

“To you, Fahim was just a dollar sign, a ticket to a life you didn’t work for,” Saleh’s sister, Rif Saleh, said in a moving victim impact statement in Manhattan Supreme Court.

“What impact have you made on the world?” she said. “You’re a con man and a murderer. I have no sympathy for you. You deserve to spend your whole life in prison.”

Saleh’s father, Ahmed Saleh, called the killer’s murder defence “sickening.”

“What you paid back to me and my family and to my son is a dead body ripped up to pieces,” he said. “He should spend the rest of his years in prison where he belongs.”

Cops said Haspil worked as Saleh’s “executive assistant” and handled the international entrepreneur’s “finances and personal matters” — and owed his boss “a significant amount of money.”

The debt stemmed from Haspil’s alleged embezzlement of $400,000 from Saleh, who in 2018 founded Gokada, a Nigerian motorcycle ride-sharing company that recently transitioned into a delivery service.

Saleh, described by one pal as “the Elon Musk of the developing world,” even gave Haspil the title of chief of staff at his Adventure Capital investment firm — only to have his protégé rip him off.

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