GREENE COUNTY, N.Y. — The man who murdered Rochester Police Officer Anthony Mazurkiewicz was caught on camera in prison attacking and beating a corrections officer.

The video shows the officer patting down Vickers inside Coxsackie Correctional Facility. During the pat down, Vickers turns around and starts hitting and punching the officer in the face.

The officer, Corey Clark, says he was letting Vickers out of his cell for his mandatory recreation time. The fight lasted about 30 seconds, and other guards came to the rescue after about 23 seconds.

Watch the full video:

News10NBC’s Chief Investigative Reporter Berkeley Brean spoke to Clark over Zoom on Thursday afternoon.

“He had something in his right hand,” said Clark. “As you can see in the video he came out with a closed fist. I don’t know what it was at the time.”

“The item or device in question, it’s still unknown to this day,” he continued. “But he did indeed cut me with something that was not his fist.”

Clark said during the fight, he was just trying to buy time until a response team came to help.

“It’s pretty much fight or flight situation at this point,” he told Berkeley. “Like, my life is in danger and pretty much protect myself at all costs.”

Clark was cut on his neck, the back of his head, and behind his ear. His knees and shoulders are bruised from taking Vickers down to the cement floor. He says these kinds of situations happen on a daily basis.

“Indeed and subsequently being in the job for almost nine years at this point. You don’t realize that people on the outside aren’t aware of these scenarios and situations inside the prison,” Clark explained. “So to me to have people ignorant to the situations that arise in prison was eye opening to me personally. Because this is just what happens on a daily basis but nobody really hears about it.”

Clark explains, just a day before the attack, Vickers was recorded on the phone saying he planned to attack the first CO he saw.

Photos of Clark’s injuries:

The Greene County District Attorney says Vickers is facing assault charges. The grand jury has the case now, and Clark testified in court on Thursday. The attack happened on January 6, prior to corrections officers going on strike.

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