B’klyn stab vic left old nabe over knife threat

just to protect himself, he moved with his wife,” the Rev. Ronan Murphy said.

“He wasn’t happy where he was living at that time.”

About 9:30 p.m. on Friday, two men attacked Carroll and his wife on the same block as their new apartment.

One of the suspects stabbed Carroll in the chest after simply asking, “What are you looking at?” Romero Carroll told the Daily News.

She watched in horror as her husband bled on the sidewalk “like if you turned a bathtub faucet on,” she recalled.

Investigators were questioning several people, including suspects believed to have been with the killer at the time of the stabbing, sources told The News.

Before the tragedy, Carroll had returned to Cypress Hills on a daily basis, making the 5-mile journey by bicycle — despite the dispute with Lissone.

He went bird-watching in Highland Park and attended daily Mass at the Carmelite Monastery, where he was a beloved volunteer who helped nuns living in a convent.

The 42-year-old victim had been expected there Sunday morning.

“He really gave his time, his effort, his energy to serve in the convent here,” Murphy said.

“He made that sacrifice to come here. He was just a nice young man who loved faith and loved serving the sisters here. He loved serving the community.”

Romero Carroll sought donations on GoFundMe for her husband’s burial.

“My husband George was a victim of a random act of violence and his death was unexpected,” she wrote.

“I love him. I’m in shock. This doesn’t feel real . . . every time I hear a bike chime, I turn around to see if it’s him . . . . All I know for sure is that my heart is shattered and that I love him.”

As of Sunday afternoon, the fund-raiser had reached $9,640, exceeding an $8,000 goal.

A native Texan, Carroll was an actor and playwright who had appeared in some independent films.

“His faith was his true north,” his wife wrote.

Among the donors to the GoFundMe account was City Councilman Rafael Espinal, who said Carroll was a regular at his district office since 2011.

He frequently alerted Espinal to quality-of-life issues in Cypress Hills, calling attention to dangerous intersections and late-night loitering in Highland Park, Espinal said.

“He respectfully confronted issues that he thought were getting in the way of his neighbors having a decent quality of life. He wanted everyone to live in their community with pride and dignity,” Espinal said.

“It’s very shocking. He’s the last person I would think would be a victim of that type of crime. He felt like an extended arm of my office. The community of Cypress Hills is mourning his death,” Espinal added.

When Andrew moved to Cypress Hills with his partner and opened their arts organization, Norte Maar, Carroll was the first to knock on his door and welcome him to the neighborhood.

“George was sort of a model citizen. The kind of citizen I hope we’d all aspire to be,” Andrew said.

“I wish I had the guts to just randomly walk up to someone’s door and say, ‘Welcome to the neighborhood!’ That probably is from his Texas upbringing. He had solid roots.”