Attorney General William Barr at a police conference on August 12 said that he was "frankly angry to learn of the MCC's failure to adequately secure this prisoner".
No cause of death has officially been revealed for Epstein, who according to the Manhattan U.S. Attorney was found dead in his cell on August 10 after what was officially called an "apparent suicide".
Barr said on Saturday that he had asked the Justice Department's inspector general to investigate Epstein's death.
Barr also issued a stern warning for anyone who may be evading justice: "Let me assure you that this case will continue on against anyone who was complicit with Epstein".
Epstein was being held without bail on federal sex trafficking charges that could have brought 45 years in prison.
But investigators have learned those checks weren't done for several hours before Epstein was found, according to one of the people familiar with the episode.
The announcement comes after Epstein reportedly committed suicide in his jail cell early on Saturday morning after he was taken off of suicide watch late last month and his cellmate was transferred out of the cell just hours prior to the infamous financier's death.
The Justice Department said the warden of another facility in upstate NY has been named the acting warden at MCC.
According to prosecutors, Epstein sexually exploited dozens of underage teens, some as young as 14, at his homes in Manhattan and Palm Beach, Florida, between 2002 and 2005.
The Herald investigation showed that Epstein's attorneys, including Ken Starr and Alan Dershowitz, created the secret plea deal with Acosta unbeknownst to Epstein's alleged victims.
Hur sizzles to wrap up Scottish Open title Hur's last LPGA victory came at the 2014 LPGA Classic, having won her maiden title five years before in the Safeway Classic. Overnight leader Moriya Jutanugarn (71) and US Women's Open champion Jeongeun Lee6 (70) tied for second place on 16-under.
If any Epstein assistants hoped to avoid charges by testifying against him, that expectation has been upended by his suicide.
His death touched off outrage from Attorney General William Barr, politicians and many of Epstein's alleged victims, who fear that they may lose their day in court now that Epstein is dead.
Lisa Bloom, an attorney for several women who claim they were abused by Epstein, told CBS that she plans to file civil litigation against Epstein's estate.
Federal prosecutors in NY, in charging Epstein last month, argued that the non-prosecution agreement is binding only on their counterparts in Florida.
On Monday, two French government ministers also called for an investigation into Epstein, saying a United States probe into the accused child sex trafficker had revealed links between Epstein and France.
Epstein served just 13 months in jail over the Florida charges under a plea deal struck by the then federal prosecutor in the state, Alex Acosta, who was forced to resign as U.S. labor secretary last month over the issue.
We should wait for answers on how Epstein's life ended.
The Bureau of Prisons did not respond to repeated requests for details about Epstein's death.
Sen. Dick Durbin, D-Ill., released a statement Tuesday calling for the Senate Judiciary Committee to hold an oversight hearing about the Bureau of Prisons.