WASHINGTON, DC, United States (AP) – Jeffrey Epstein was left alone in his jail cell with a surplus of bed linens the night he killed himself. Nearly all the surveillance cameras on his unit didn’t record. One worker was on duty for 24 hours straight. And, despite his high profile and a suicide attempt two weeks earlier, he wasn’t checked on regularly as required.

The Justice Department’s watchdog said Tuesday that a “combination of negligence, misconduct and outright job performance failures” by the federal Bureau of Prisons (BOP) and workers at the New York City jail enabled the wealthy financier to take his own life in August 2019, finding no evidence of foul play.

Inspector General Michael Horowitz blamed numerous factors for Epstein’s death, including the jail’s failure to assign him a cellmate and overworked guards who lied on logs after failing to make regular checks. Had the guards done so, Horowitz said, they would’ve found Epstein had excess linens, which he used in his suicide.

The failures are deeply troubling not only because they allowed Epstein’s suicide but also because they “led to questions about the circumstances surrounding Epstein’s death and effectively deprived Epstein’s numerous victims of the opportunity to seek justice”, Horowitz said in a video statement.

Horowitz’s investigation, the last of several official inquiries into Epstein’s death, echoed previous findings that some members of the jail staff involved in guarding Epstein were overworked. He identified 13 employees with performance failures and recommended possible criminal charges against four workers. Only the two workers assigned to guard Epstein the night he died were charged, avoiding jail time in a plea deal after admitting to falsifying logs.

Horowitz’s report also revealed new details about Epstein’s behaviour in the days before his death, including the signing of a new last will and testament while meeting with his lawyers two days before he was found unresponsive in his cell the morning of August 10, 2019. Jail officials did not know about the new will until after Epstein’s death, Horowitz said.

Few of the cameras in the area where Epstein was housed were making recordings of the images they captured due to a mechanical failure July 29. The prison had contracted for a camera system upgrade three years before his death, but it had not been completed, in part due to serious staffing shortages.

Meanwhile, Epstein was alone the night of his death, even though the prison’s psychology department had informed 70 employees that he needed to be with a cellmate after his previous suicide attempt in July. His cellmate was nevertheless transferred August 9, with no action taken to replace him. He was also allowed an unmonitored personal phone call the night before he was found dead, a violation of BOP policy.

Horowitz’s report highlighted some of the many problems plaguing the Bureau of Prisons, many of which have been exposed by The Associated Press. The agency, the Justice Department’s largest with more than 30,000 employees, 158,000 inmates and an annual budget of about $8 billion, is plagued by severe staffing shortages, staff sexual abuse and criminal conduct, among other issues.

The BOP said it has accepted all eight of Horowitz’s recommendations, has updated its suicide watch process and will apply other lessons learned “to the broader BOP correctional landscape”.

The agency said it will review video to ensure correctional officers are making the proper rounds in restrictive housing and will require more paperwork when prisoners are kept alone in cells. A warden must now be notified when someone is placed on suicide watch, the agency said. It is also requiring specialised training on suicide prevention.

“We make every effort to create a controlled environment within our facilities that is both secure and humane, prioritising the physical and emotional well-being of those in our care and custody,” the BOP said in a statement.

Horowitz’s report comes nearly four years after Epstein took his own life at the Metropolitan Correctional Center in Manhattan while awaiting trial on sex trafficking and conspiracy charges. It also comes weeks after the AP obtained thousands of pages of records detailing the wealthy financier’s detention and death and its chaotic aftermath.