NEW YORK (CBSNewYork) — A man accused in the brutal murder of a Brooklyn professor is set to be arraigned.

Police say 28-year-old Mirzo Atadzhanov has been charged with murder and burglary.

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As he was led from the 70th precinct in handcuffs, Atadzhanov claimed the murder he is now charged with happened in self-defense.

“I was defending myself,” he told reporters.

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Sources tell CBS2 66-year-old Jeremy Safran was found beaten to death with a hammer in the basement of his Ditmas Park home Monday night. The suspect was found covered in blood and hiding in a closet.

Police say the attack appears to be random and the motive remains unclear.

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Safran was a professor of psychology at The New School.