An ex-con killer who worked for an NYC anti-violence group is being eyed by cops for slashing a man in the Bronx, The Post has learned.

The Bronx Rises Against Gun Violence worker — who was twice charged with murder — allegedly attacked a stranger around 3 p.m. May 5 near the nonprofit’s Boston Road office, police sources said.

The 38-year-old victim told police he was walking to a deli in the East Bronx when the stranger slashed his left cheek and chin. 

The alleged slasher and the men with him — who also work at the so-called “violence interrupter” group – ran, the sources said.

When police went to the group’s nearby headquarters to investigate, they were told to stay out.

“We don’t work with police,” someone inside barked, law enforcement sources said.

BRAG was listed as community partners in the city’s “Blueprint to End Gun Violence,” a 2022 initiative of former Mayor Eric Adams, to prepare a “plan of action towards removing guns from New York City streets to protect communities and create a safe, prosperous city.”

Police sources said the incident is an example of just how “insane” the woke anti-violence nonprofit industry is — and how dangerous.

“So someone on the city payroll whose job it is to prevent violence slashed someone in the presence of his coworkers and they all fled together,” a stunned police source said. 

“It’s insane,” the source said. “It’s absolutely insane.”

The 38-year-old victim, who spoke on the condition of anonymity because he fears for his safety, said he was going to Sam’s Deli to get food for his family when the ex-con “just walked up to me and cut me.

“He just cut me from behind. I didn’t see him. It was out of nowhere, out of the blue. I thought he cut my neck, but it was my cheek and chin.”

The three-inch wound bled profusely but didn’t require stitches, he said.

He is outraged his attacker is paid with taxpayer funds.

“It’s just ridiculous how [the city] can hire just anybody without caring,” he said.

The suspected slasher hasn’t been arrested so his name is being withheld by The Post, but he was charged with murder in two fatal shootings in 2006, according to police sources.

He was charged in a gang-related Bronx homicide at a Kennedy Fried Chicken on White Plains Road and Nereid Avenue, according to reports from the time.

He was acquitted in that crime after serving five years in jail, records show.

He went to state prison 2014 for the other fatal shooting, with an eight-year sentence for manslaughter and attempted promotion of prison contraband, records show. No details about the crime were available.

He was released to parole in 2017, and completed his community supervision in July 2020, the records show.

BRAG was formed in 2014 as a program of the much larger Good Shepherd Services, a non-profit that is part of the city’s Crisis Management System.

Good Shepherd has received more than $1.4 billion in city contracts since 2006 for a range of services, records show.

Of that amount, $14,784,347 was earmarked for programs aimed at preventing gun and other types of violence.

BRAG operates in the 46th, 47th, and 52nd Precincts in the Bronx. City records show it received at least $320,000 in taxpayer funds since 2016. But it may have recived much more through Good Shepherd because the non-profit’s specific spending isn’t public.

Shooting victims and incidents have dropped 15% and 17% respectively in the borough so far this year over the same period last year, according to NYPD data.

It’s not clear what kind of role the group will play under Mayor Mamdani, who has talked about moving some policing responsibilities away from the NYPD.

It’s not the first time BRAG has had a criminal in its midst.

Michael Rodriguez, the group’s former director of programming, was hit with drug and gun charges in a massive upstate bust in 2023. Cops raided his Yonkers home and found drugs, more than $165,000 in cash and two illegal guns — a Ruger .380 caliber handgun and a Bond Arms .357-caliber handgun.

He pleaded guilty and was sentenced to eight to 10 years in prison in 2024. He is currently serving time at Sing Sing, prison records show.

And in 2024, Jermaine Greene, who also worked with BRAG, was busted with a ghost gun and a bag of crack cocaine when he was caught attempting fare beating at the Fordham Road station in University Heights, records show.

A Good Shepherd spokesman said that the slashing suspect no longer works for BRAG. The man could not be reached for comment.

“Acts of violence are unacceptable and that standard applies to everyone within our organization, without exception,” according to the statement. “Our staff are dedicated to the community they serve, and remain committed to B.R.A.G.’s mission of building safer neighborhoods where violence of any kind has no place.”