U.S. multimillionaire financier Jeffrey Epstein died of an apparent suicide in his jail cell, now prompting an additional federal investigation into his death along with one already examining allegations of sexual abuse and conspiracy against him.

Epstein, accused of orchestrating a sex-trafficking ring and sexually abusing dozens of underage girls, was found Saturday morning unresponsive in his cell at the Metropolitan Correctional Center, according to the U.S. Federal Bureau of Prisons. He was later pronounced dead at New York Presbyterian-Lower Manhattan Hospital.

Epstein had been placed on suicide watch after he was found a little over two weeks ago with bruising on his neck, according to a person familiar with the matter who wasn’t authorized to discuss it publicly. But he was taken off the watch at the end of July and therefore wasn’t on it at the time of his death, the person said.

Attorney General William Barr, calling for an investigation by the FBI and the Justice Department’s inspector general’s office, said he was “appalled” to learn of Epstein’s death while in federal custody.

“Mr. Epstein’s death raises serious questions that must be answered,” Barr said in a statement.

Epstein, 66, had been denied bail and faced up to 45 years behind bars on federal sex trafficking and conspiracy charges unsealed last month. He had pleaded not guilty and was awaiting trial.

The federal investigation into the allegations remains ongoing, U.S. Attorney Geoffrey Berman said. He noted in a statement Saturday that the indictment against Epstein includes a conspiracy charge, suggesting others could face charges in the case.

Epstein’s death raises questions about how the Bureau of Prisons ensures the welfare of such high-profile inmates. In October, Boston gangster James “Whitey” Bulger was killed in a federal prison in West Virginia where he had just been transferred.

Epstein’s removal from suicide watch would have been approved by both the warden of the jail and the facility’s chief psychologist, said Jack Donson, a former prison official who worked for the Bureau of Prisons for more than two decades.

Before his legal troubles, Epstein led a life of extraordinary luxury that drew powerful people into his orbit. He socialized with princes and presidents.

On Friday, more than 2,000 pages of documents were released related to a since-settled lawsuit against Epstein’s ex-girlfriend by Virginia Giuffre, one of Epstein’s accusers. The records contain graphic allegations against Epstein, as well as the transcript of a 2016 deposition of Epstein in which he repeatedly refused to answer questions to avoid incriminating himself. (SD-Agencies)