FBI agents interviewed residents at the complex Tuesday, but some who lived there said they knew nothing of their former neighbor. Records show he worked as a commercial truck driver and formed a pair of trucking businesses that could have kept him on the road for long stretches.

He had a handful of driving violations and was arrested last year in Missouri after failing to appear in court on a citation for brake defects. Jail records indicate he was detained for less than an hour.

Saipov and his family moved from Florida to New Jersey in June, according to a law enforcement official who spoke on condition of anonymity.

On Wednesday, FBI agents removed evidence bags from an apartment building in Paterson, just northwest of New York City.

Maria Rivera, who lives down the street, said she sometimes saw Saipov talking on his phone or with two or three other men in the neighborhood. A month ago, when she saw a little girl walking down the street, she asked the child who her mother was.

She pointed in the direction of Saipov’s home, Rivera said.

“He came out, grabbed the baby and he didn’t say nothing to me,” she said.

Birth records in Ohio show that Saipov and his wife had two daughters, ages 2 and 4. A neighbor in New Jersey said they had a third child, a boy, earlier this year.

Another neighbor of Saipov, who is Rivera’s son, 23-year-old Carlos Batista, said he saw Saipov and two friends come and go several times in the past three weeks in the same model Home Depot pickup used in the attack. He also recalled a recent incident in which Saipov played the role of peacemaker.

Two of Saipov’s friends were angry Batista was riding a dirt bike up and down the street and ordered him to stop. Tempers flared and words escalated until Saipov came outside.

He “basically was the peacemaker,” Batista said. “He calmed everything down.”

Muminov said he last heard from Saipov a few months ago when he called asking for advice on insurance. He said he heard from friends of Saipov that his truck engine blew a few months ago.

Bahij Chancey, 26, center, holds a photo of his friend and, one of the victims Nicholas Cleves, during an interfaith vigil for peace at Foley Square in response to the Manhattan truck attack, Wednesday, Nov. 1, 2017, in New York. Multiple people were killed and others seriously injured in the Tuesday afternoon attack when, authorities say, Sayfullo Saipov, a 29-year-old from Uzbekistan, barreled along the path in a pickup truck for more than a dozen blocks. Photo: AP Photo/Andres Kudacki.

“He lost his job,” Muminov said. “When someone loses their truck, they lose their life.”

That may have led Saipov to drive for Uber, which confirmed he had passed a background check and driven for six months, making more than 1,400 trips.

Authorities said Saipov never was the subject of an investigation by the New York Police Department’s intelligence bureau or the FBI, but they were looking at how he might be connected to the subjects of other investigations. Saipov had been planning his attack for weeks, police said.

After plowing through the bike path and into a school bus, authorities said, he emerged from the vehicle, brandishing air guns and yelling “God is great!” in Arabic.

He remained at Bellevue Hospital, where he was recovering from being shot by the police officer who stopped the attack.

Late in the afternoon, he was taken to a federal court hearing after a terrorism charge and other counts were filed against him by prosecutors, who said he was “consumed by hate and a twisted ideology.”

Saipov appeared in a wheelchair, with his hands and feet shackled. He didn’t enter a plea or seek bail.

As he lay in bed at the hospital, authorities said, he asked about displaying a flag for the Islamic State group in his room. He said, according to court documents, that he felt good about what he had done.

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Kang reported from Stow, Ohio. Associated Press writers Deepti Hajela and Wayne Parry in Paterson, New Jersey; Colleen Long in New York; Tamara Lush in Tampa, Florida; Michael Sisak in Philadelphia; and Jim Salter in St. Louis also contributed to this report.