ROCHESTER, N.Y. — Kelvin Vickers, the man serving two life sentences in prison for killing Rochester Police Officer Anthony Mazurkiewicz and injuring Officer Sino Seng, is being accused of assaulting a correction officer at Coxsackie Correctional Facility on Jan. 6, 2025.

“My first thought was, I'm not surprised. And my second thought was, thank God that correction officer is still alive,” said Monroe County District Attorney Sandra Doorley. “I'm familiar with Mr. Vickers’ history and I know what he's capable of. So we have to thank God that he's not being charged with another aggravated murder of a correctional officer.”


What You Need To Know

  • Kelvin Vickers was sentenced to life in prison on Feb. 29, 2024, for the aggravated murder of Rochester Police Officer Anthony Mazurkiewicz
  • He's now accused of assaulting a correction officer at Coxsackie Correctional Facility
  • Officials say they're "not surprised" by the accusations from seeing Vickers' criminal history 

She represented the Mazurkiewicz family during Vickers’ trial. Mazurkiewicz was killed in the line of duty on July 21, 2022. On Oct. 13, 2023, Vickers was found guilty of the aggravated murder of Mazurkiewicz, among other charges. Vickers was sentenced to life in prison on Feb. 29, 2024.

According to Doorley’s office, Lynn Mazurkiewicz has been keeping tabs on her husband's killer. She says he started his sentence at Great Meadows, then transferred to Sing Sing, then onto Coxsackie Correctional, where this alleged incident took place at the beginning of the year.

“That seems to be the nature of what goes on in these jails, is that there's constant fights and constant altercations with COs and stuff like that,” Michael Schiano, Vickers’ former defense attorney, said. “So, it doesn't surprise me that this was something that happened with him."

“At one point, he was charged with promoting prison contraband, meaning he had made a weapon out of plastic material. It’s called a shank,” Doorley said. “Now he's in a confined area where his victims are finite, so to speak. So I hope that the Department of Corrections looks at him, looks at his character and looks at his record, because this is certainly a person who should not be exposed to other people, whether it be other inmates or correction officers. He clearly poses a risk.” 

“This is something that we just got in the Monroe County Jail. And this is how easy to put a shank together inside the jails. So this is the cover of an aluminum serving tray for our food service, simply broken off and sharpened by bending it. A pen that you can get in any office space in the jail and wire from a tablet. And they put it together within minutes. And it's as sharp as a knife and just as deadly going across your artery,” Monroe County Sheriff Todd Baxter, displayed. “When you've got someone that can get their hands on something like this, and you got someone that's willing to kill another human being and has nothing to lose, you got a very scary, dangerous person.”

Sheriff Baxter, a close friend of fallen officer Mazurkiewicz, says incidents like these tear the rest of the family apart. They think of all of the other officers impacted by violence.

“We were screaming from day one, this is dangerous. This is very dangerous. If we don't have a system, control people that are in jails that don't want to be controlled, we're going to have a dangerous jails and dangerous prisons. And in this case with Vickers now just illustrates that because we can see it,” he explained.

When serving a life in prison, the thought of nothing left to lose comes to mind when thinking about the motives before Vickers’ most recent alleged attack. 

“You always hope that something does, turn a light on with him and goes the other way,” Schiano said. “But again, like we've already said, when you're facing a life sentence and without the possibility of parole, there's really not much hope for someone like that. I mean, that's unfortunately, there is no hope for that person. Could he rehabilitate? Sure. But it's going to be a very difficult road for him.”

Doorley says she believes he should be placed in solitary confinement.

“I don't mind having discussions on the tenants or the reform the HALT Act, but you have to be able to do both at the same time. With that being said, what do you do with Vickers?” Baxter said, “This is not fair, what's occurring to these families and these public servants, and no one's screaming. No one. So where's the outcry from my legislators saying, ‘we got to do something to protect these correction officers inside these prisons?’ ”