"Let me assure you that case will continue on against anyone who was complicit with Epstein", Barr said in remarks to a law enforcement group in New Orleans on Monday.
Epstein was accused of sexually abusing underage girls and was facing 45 years behind bars.
According to The New York Times, the staff did not follow protocols leading up to Epstein's death which has caused major scrutiny.
Published reports are saying guards on accused sex trafficker Jeffery Epstein's unit were working several overtime shifts - following his suspected jail-cell suicide. An additional federal investigation was launched Saturday after the Federal Bureau of Prison said Epstein was found unresponsive in his cell at a high-security jail in Manhattan.
Accusers of convicted sex offender Jeffrey Epstein say his death should scrap the non-prosecution agreement he negotiated with Florida federal prosecutors over a decade ago.
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The FBI and the Department of Justice's Office of the Inspector General will investigate the circumstances surrounding Epstein's death, Attorney General William Barr said. Ben Sasse, who in a statement Saturday said that there was no excuse for Epstein to be approved to be taken off of suicide watch.
The medical examiner's determination is pending further information, Dr. Barbara Sampson, chief medical examiner of the City of NY, said in a press release.
The court filing Monday came in a long-running lawsuit against the US government by women who claim they were not consulted about the 2008 plea deal as required by the federal Crime Victim's Rights Act. He was awaiting trial on drug trafficking charges.
The case against Alkisi was dropped after he pleaded guilty to an immigration violation and was sentenced to 20 months in prison.
"The Federal Bureau of Prisons must provide answers on what systemic failures of the MCC Manhattan or criminal acts allowed this coward to deny justice to his victims", he tweeted.
L'intégralité du communiqué du ministre de la Culture — Décès d'Arafat DJ
Sa mort, à 33 ans, vient mettre un point final à une carrière florissante et contribuera, sans aucun doute, à créer la légende. Son décès intervient deux jours après un concert à Abidjan dans le cadre d'une tournée dénommée " Moto Moto ".
No one else was named or charged alongside Epstein.
"We've worked so hard to get here, and he stole that from us, too", she told the newspaper.
Jeffrey Epstein looks on near his lawyer Martin Weinberg and Judge Richard Berman during a status hearing in his sex trafficking case, in this court sketch in NY on July 31, 2019.
It's not clear why his attorneys had requested that he be taken off suicide watch.
Epstein was allowed to plead guilty to lesser Florida state prostitution-related charges, serving 13 months in jail. The reporting and new attention led to the resignation of Trump administration Labor Secretary Alex Acosta, who negotiated the plea agreement when he was the U.S. attorney in Miami.
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Before his legal troubles, Epstein led a life of extraordinary luxury that drew powerful people into his orbit.