Rachael Denhollander had the first word and the last one. A former gymnast who became a lawyer and a coach, Ms. Denhollander told The Indianapolis Star in 2016 that Dr. Lawrence G. Nassar had molested her as a child. She had just read a report in The Star about U.S.A. Gymnastics' mishandling of sexual misconduct allegations against coaches. But no one had yet spoken up about Dr. Nassar, who molested young athletes for about two decades while pretending the abuse was therapy. The Star soon published an article about the doctor, based on reports from two former gymnasts. One remained anonymous. The other was Rachael Denhollander. In a Michigan courtroom Wednesday, before Dr. Nassar received a prison sentence of 40 to 175 years for multiple counts of criminal sexual misconduct, Ms. Denhollander, 33, spoke again. This time, she was not alone. Over a seven-day sentencing hearing, 155 people had delivered victim impact statements to the court. Ms. Denhollander became the 156th, the final voice in a gathering of survivors who grew stronger by the day. Michigan State and U.S.A. Gymnastics, which made Dr. Nassar its longtime doctor for the national women's team, were culpable in this case, too, Ms. Denhollander said. She mentioned that Dr. Nassar had used his phony medical treatments on her after four other women had complained about Dr. Nassar to employees in the M.S.U. athletic department.