Sarah Kellen, 46, Jeffrey Epstein's longtime personal assistant, testified before the House Oversight Committee on Thursday, saying she was repeatedly raped and abused by Epstein. She also provided lawmakers with names of three previously unknown alleged offenders. Committee Chairman James Comer (R-KY) described her testimony as "by far the most substantive and productive interview," after the closed-door hearing took place, according to Capitol Hill correspondent Joe Khalil. Despite being designated a "potential co-conspirator" in Epstein's 2007 non-prosecution agreement, according to MS NOW, Kellen has consistently stepped forward as a victim. At Thursday's hearing, Kellen disputed her co-conspirator designation, explaining that law enforcement never interviewed her or heard her account, reports CNN's White House Correspondent MJ Lee. In her opening statement, Kellen described her abuse as occurring and violent. It also contained detailed graphic incidents of assault and rape, according to Lee. Kellen explained her prolonged stay with Epstein, "I had nowhere else to go," adding, "I had no money, no family, no education, and no sense that I deserved any better." The three names Kellen shared remain undisclosed.Watch the video below. Your browser does not support the video tag.