The illegal immigrant shot by ICE agents in a chaotic Bronx showdown terrorized his former neighbor’s nephew with a machete — and a terrified resident of the apartment building told The Post Saturday he is relieved the accused violent gangbanger has finally been taken off the streets.

Oscar Belgal, who federal authorities said is a “criminal illegal alien” from the Dominican Republic with alleged ties to the violent Trinitarios street gang, wreaked havoc in the halls of the Washington Heights apartment building where he lived until about a year ago, according to locals.

“He’s a menace to society,” one shaken resident said of Belgal — who Mayor Zohran Mamdani outrageously called a “New Yorker” whose he tried to negotiate as he railed against US Immigration and Customs Enforcement.

“I spoke to him once and told him, ‘Look, you need to be more submissive because I see you acting too reckless’ … He thought he was a tough guy,” the resident told The Post.

The former neighbor, a man from the Dominican Republic who withheld his name, recalled one of Belgal’s most unhinged outbursts while living there — in which he pulled a machete on another resident’s nephew.

He claimed Belgal got into a fight with the man outside the building last year, prompting him to whip out the deadly weapon.

The neighbor also claimed Belgal, who he described as arrogant and smug, previously dodged ICE by running down one of the building’s two fire escapes.

“They were looking for him. It seems he had a pending case; Immigration goes after people who have committed crimes,” he said. “Immigration is just doing its job. They go after those who have committed crimes.”

Belgal’s rap sheet includes an 2023 armed robbery conviction and a 2025 arrest for allegedly selling lethal drugs like fentanyl, cocaine and heroin in a case that remains open. His most recent run-in with the law was Thursday when two plainclothes ICE agents, with guns drawn, approached the front left side of the gray Honda CR-V he was driving as he peeled out of a parking spot on 225th Street in The Bronx.

One punched and smashed the glass of the driver’s side window. Marcos Charles, the head of ICE’s Enforcement and Removal Operations division, said Belgal “accelerated” at the agents, “smashing” into two of them, which was not captured on the CCTV footage obtained by The Post Friday.

Agents caught up with Belgal about half a block away on Marble Hill Ave outside the C&G Gourmet Deli before bullets rang and he was shot in the neck, according to NYPD Commissioner Jessica Tisch.

His 5-year-old son, who was in the backseat of the vehicle, was unharmed. Belgal is expected to recover.

On Saturday, protests erupted in Midtown in support of the alleged gangbanger, with anti-ICE rioters holding signs demanding “justice for Oscar Belgal” and to “abolish ICE.” Other posters called for Tisch to be fired.

“He’s putting his son at risk. He’s got legal trouble, yet he drives around with his son in the car?” Belgal’s outraged former neighbor asked. “No, I don’t think that’s right. If he owes a debt to society, he should pay it…He was a danger to society.”