He added: "We know these people exist in the FBI files, the files that you control." Patel blamed former Miami federal prosecutor Alexander Acosta for what he called the "Original Sin" — explaining the decision to give federal immunity to Epstein in 2008 has hampered almost every effort by the FBI and Justice Department to hold those involved in Epstein's criminal operation accountable. On Friday, Acosta will be grilled by the House Oversight Committee in closed-door testimony for the first time since he resigned as U.S. labor secretary amid renewed scrutiny of the caseBy the time he was named U.S. Attorney for the Southern District of Florida in 2005 aged 37, the FBI was already investigating Epstein, and evidence suggested that the crimes against children and young women he committed in Palm Beach went well beyond Florida.