NEW ORLEANS — For more than 90 minutes, 15-year-old Jaquin Thomas’ motionless body hung from a New Orleans jail window bar before anyone noticed.

The suicide last fall was the second in a year at the new jail, which was supposed to help solve a myriad of longstanding problems: suicide attempts, inmate violence, drug use and guards using too much force.

Instead, Jaquin’s suicide refocused attention on the conditions at the notoriously dangerous lockup, where reform has been slow.

U.S. District Judge Lance Africk has repeatedly lamented years of little or no progress in implementing court-ordered changes, although he expressed optimism at a hearing in June that a new jail director can turn things around.

“Needless to say,” Africk said, “15-year-olds should not be hanging themselves in the jail.”

Jaquin landed in adult jail when he and his uncle were charged with second-degree murder. Police said Jaquin and 35-year-old Tyrance Chancellor forced their way into a New Orleans apartment. There was a scuffle inside; Hasahn Shawl, 24, was shot to death.

The motive is unclear, but Shawl’s mother, Trellis Hughes, said she believes Chancellor had a disagreement with her son over a woman.

A witness told police Chancellor exited the apartment and said, “I don’t know why Jaquin shot him.”

Thomas was taken to a juvenile facility, but with prosecutors pursuing a murder charge, he was transferred to adult jail. The exact date of his transfer is unclear but he was there by early September, according to a lawsuit filed by his family. He killed himself on Oct. 17.

He had an absentee father and an often-incarcerated mother. At 4, he was among tens of thousands of evacuees during Hurricane Katrina in 2005. He wound up in the care of his grandmother, Tina Thomas. She, too, had evacuated New Orleans, settling in her small hometown of Ville Platte, 160 miles away.

Before Jaquin’s death, a teacher, a minister and others told a judge in letters that he was well-behaved, respectful and enthusiastic about sports. A cousin, Barbara Thomas, said Jaquin was industrious, helping her husband fix bicycles and lawnmowers.

“He fixed one for himself and cut grass during the summer,” she recalled.

Jaquin loved visiting relatives in New Orleans, his grandmother said – the big city held more interest for him.

Last summer, he visited his uncle, Tina Thomas’ brother, there.

“The last thing my brother told me: ‘I’m not going to let nothing happen to him,”‘ Thomas said.

She said Jaquin worked with Chancellor at car washes, and the calls to her dwindled. The last time she talked to him before he was arrested, she detected slightly slurred words. She worried he was using drugs.

Jail was jarring for him. Jeanine McNeal, a family friend who visited, said inmates stole his food and beat him. A sheriff’s office attorney confirmed at a City Council hearing that Jaquin was hurt in a fight with a 16-year-old armed-robbery suspect weeks before his suicide.

“My child was scared out of his wits,” Tina Thomas said. “He was like a little lamb with a bunch of wolves.”

The sheriff’s office said a guard was supposed to check on inmates in Jaquin’s area every 15 minutes. An investigation found that then-Deputy Keriana Alexcee spotted Thomas at a desk in his cell writing something – a suicide note was later found. Forty minutes later, surveillance video “captured the inmate standing on a stool inside of his cell, reaching for the area of the cell’s window.”

Alexcee passed the cell four times before noticing Thomas’ body suspended under the window – 90 minutes after he’s believed to have lost consciousness, an arrest warrant said. She pleaded not guilty to malfeasance.

About a year before the suicide, inmates were moved from the deteriorating, aging Orleans Parish Prison complex to a new jail, dubbed the Orleans Justice Center. Tasked with running it, Orleans Parish Sheriff Marlon Gusman hailed the move as a major step.

About six months after it opened, inmate Cleveland Tumblin, 63, hanged himself in a shower. An expert testifying in court said precious time was lost because a guard couldn’t open the shower door from the outside.