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The unhinged ex-NYPD cop accused of fatally stabbing a Brooklyn jogger told police he was at the bike path with a knife because “people were going to come and kill his family,” according to a criminal complaint.

Former Police Officer Sayed Mohassib — a 27-year-old city public-school teacher’s aide — made the maniacal statement after he was nabbed in the Oct. 30 slaying of 28-year-old Katie Suarez, who was out for a jog along the Belt Parkway in Brooklyn when she was stabbed twice in the neck and left to die.

Mohassib was tracked down partly thanks to surveillance video that captured him walking toward the crime scene and later running from it in a time sequence that fit the horrific apparently random crime, according to the Brooklyn criminal complaint.

Former police officer Sayed Mohassib appears in Brooklyn Criminal Court on Nov. 8, 2026, for his arraignment in the fatal stabbing of Katie Suarez. Kevin C.…