In a surprising twist, a New Jersey man once hailed as a local hero, known affectionately as the “street mayor” by his community, is now at the center of a shocking criminal case. Previously celebrated for his apparent attempts to save his neighbor from a devastating house fire, authorities have now accused him of igniting the blaze.

The Union County Prosecutor’s Office has charged 70-year-old William Ahle with several serious offenses, including first-degree murder, first-degree felony murder, first-degree burglary, and second-degree aggravated arson. Ahle was taken into custody on Wednesday and is currently being held in Middlesex County Jail.

The incident dates back to the early morning of July 25, when a fire erupted at a residence on Kempshall Terrace in Fanwood, a quiet town in north-central New Jersey. Despite the swift response of the fire department, the blaze claimed the life of 82-year-old Virginia Cranwell, the home’s occupant.

Initially, the investigation suggested that Ahle, Cranwell’s next-door neighbor, had made a valiant effort to rescue her. During the incident, Ahle suffered second-degree burns, which led to his hospitalization.

The fire was investigated, and in the probe’s initial stages, it appeared that Cranwell’s next-door neighbor — Ahle — tried to come to her aid.

“He just looked, and he saw smoke and flames, and then he just went in,” Ahle’s son, Matthew Ahle, told NBC’s flagship station WNBC after the fire was put out. “He apparently opened the bedroom door and all the flames just bursted out, and then he fell backwards, and I guess that’s how he got all his burns.”

William Ahle was hospitalized with second-degree burns sustained in the fire.

“I’m happy he tried, he tried his best,” the younger Ahle added. “Like I said, I can’t imagine anyone else who would do that. So, he is the street mayor.”

However, as the investigation continued, fire officials “determined the cause of the fire to be an intentional act,” and Ahle was identified as the suspect. The Union County Medical Examiner’s Office ruled Cranwell’s death a homicide.

Authorities have not revealed what evidence they compiled to form their conclusion nor have they suggested a suspected motive.

“Everybody knows who he is, and, you know, no one has ever had a bad word to say about him,” one neighbor told the New York City-based TV station.

“Since the fire, you know, I mean, we all just thought he was a hero,” said another community member. “I feel bad for the family. I do, ’cause I really like them.”

Cranwell will be remembered “for her extraordinary physical beauty — youthful, graceful, and effortlessly striking,” according to her obituary. “Virginia’s life was defined by how she made others feel — loved, safe, seen. Her spirit was gentle. Her laughter came easily. Her kindness was instinctive. She created joy in everyday moments-through play, through affection, through simple connection.”