> The FBI's investigation into Nassar started in July 2015, after USA Gymnastics President and CEO Stephen Penny reported the allegations to the FBI's Indianapolis field office.
> That office, then led by Special Agent in Charge W. Jay Abbott, did not formally open an investigation.
> The FBI only interviewed one witness - Maroney - several months later, in September 2015. It failed to formally document that interview in an official report known as a "302" until February 2017 - well after the FBI had arrested Nassar on charges of possessing sexually explicit images of children in December 2016.
> Abbott, who retired from the FBI in 2018, also violated the FBI's conflict of interest policy by discussing a possible job with the U.S. Olympic Committee while he was involved with the Nassar investigation.
> As the FBI delayed its probe, Nassar went on to abuse more victims. At one point in Wednesday's hearing, Senator Richard Blumenthal asked all four athletes whether they knew of victims who were abused after the July 2015 disclosure to the FBI.
> "Yes," all four of them said.