NEW YORK (CBSNewYork) — A man wanted in a violent attack on a New York City bus driver in Brooklyn surrendered to police on Tuesday.

The incident took place aboard a B8 bus at around 6:15 p.m. on Jan. 29 at the corner of Nostrand Avenue and Avenue D in East Flatbush, police said.

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Surveillance video showed a suspect with dreadlocks throwing numerous punches at the driver, reaching around the security gate to attack him. The victim was hit repeatedly in the face.

On Tuesday, Thutmose Scott Clark, 29, was accompanied by his mother and the family’s pastor as he surrendered. They said Clark suffers from mental illness and autism, and the said those conditions caused Clark to attack the bus driver.

Clark’s mother said she told the bus driver that her son was experiencing an outburst.

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“I announced to the bus driver that my son had some mental illness issues — please let us off the bus,” Clark’s mother said. “He refused to let us off the bus.”

The mother said her son also asked the driver to let him off the bus, and the situation then escalated.

The driver, 62, had previously told police the attack was completely unprovoked, and there was no quarrel before the attack.

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Clark was being questioned at the 67th Precinct police station in Prospect Lefferts Gardens, Brooklyn late Tuesday night.