NEW YORK -- The brother of a man who kidnapped and dismembered a lost 8-year-old boy has been found dead, his body bound, wrapped in a blanket and stuffed in a basement closet in the same Brooklyn home where detectives uncovered the gruesome remains of the boy nearly five years ago.

Detectives found Tzvi Aron's body after police were called there by family, a law enforcement official said.

Aron, 29, a bakery worker, had been last seen Tuesday. The death is being investigated as a homicide; Aron had been recently threatened but it wasn't clear why, the official said. The medical examiner will determine a cause of death. The official wasn't authorized to speak publicly about an ongoing investigation and spoke to the AP on condition of anonymity.

Scenes of police officers and crime scene tape brought back painful memories for many living in the neighborhood. The property was once the scene of a crime that rocked the Jewish community in 2011, CBS New York reports.

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"It's been so long. So to reawaken that sense of fear -- it's difficult," neighbor Brian Berman told the station.

"It was a sad event, it was really sad. It honestly touched my heart. It was a little boy, his family was crying," Mahmud Bhuiyn added.

Tzvi's brother, Levi Aron, pleaded guilty in the kidnapping and killing of 8-year-old Leiby Kletzky in July 2011. Leiby got lost on his walk home from a religious day camp. It was the first time he was allowed to walk alone, and he was supposed to travel about seven blocks to meet his mother, but missed his turn. He ran into Levi Aron on the street, who promised to take Leiby home.

Levi Aron, right, the suspect accused killing and dismembering 8-year-old Brooklyn boy Leiby Kletzky, is led into the 67th Precinct by police, Thursday, July 14, 2011, in the Brooklyn borough of New York. P John Minchillo / AP

But instead, Aron brought the boy about 40 miles upstate to Monsey, New York, where he attended a wedding before bringing him back to his home. He kept him there overnight and the following day as he went to work at a hardware store.

Meanwhile, a massive search for the boy was underway in Borough Park section of Brooklyn, home to one of the world's largest communities of Orthodox Jews outside of Israel. Thousands of volunteers from the Hasidic community had assembled to comb the streets. Aron is Orthodox but not Hasidic. The Hasidim are ultra-Orthodox Jews.

When Aron noticed flyers plastered on lampposts with the boy's photo, he says he got spooked, went home and suffocated the boy, police said. A toxicology report found Leiby had also been drugged.

Detectives found the boy's severed feet, wrapped in plastic, in a freezer at Aron's home, about 2 miles (3 km) from the boy's home. A cutting board and three bloody carving knives were found in the refrigerator. The rest of the boy's body was discovered in bags inside a red suitcase in a trash bin about a mile from the home. His legs had been cut from his torso.

Levi Aron pleaded guilty to kidnapping and killing the boy, and is serving 40 years to life in prison.

In the years since, his family remained at the home in Brooklyn, which is divided into apartments. Tzvi lived in the basement apartment; Levi had lived on the top floor. Another brother lives there. The family's mother died from cancer and a sister, Sarah, died while institutionalized with schizophrenia before Levi Aron was arrested, according Levi Aron's psychiatric report obtained by the AP.

Over the years they've received dozens of death threats after the horrifying killing. On Friday, police once again cordoned off the cream-colored home, in Brooklyn's Kensington neighborhood, as a crime scene.

"It was spooky," neighbor Kathleen Henderson told the New York Daily News. "Everyone keeps an eye an on that house for obvious reasons. No one trusted them after that incident with the little boy."