Congress has been investigating just what went wrong in the Nassar case. On Tuesday it will hold yet another hearing on how to prevent sexual abuse in amateur sports, with Michigan State’s interim president, John Engler, as one witness. On the eve of that hearing, Ms. Pryor said that while lawmakers and officials with the public universities might be eager to talk about how they can protect future athletes from abuse, “if they continue to hide the problem and protect themselves from bad publicity, they are just as bad as the perpetrator.”



Lawyers representing plaintiffs in these cases say they believe there will be more victims speaking out in the coming months about their experiences at other universities.

“If you look at this dynamic of these cases, it’s like what happened in the Catholic Church,” said John C. Manly, a lawyer who represents more than 150 plaintiffs in each of the Nassar and Tyndall cases. “The church abuse stories started with a trickle, but what really broke it open was the abuse in Boston. I think the Larry Nassar case is academia’s and sports’ Boston Archdiocese. So, I hope I’m wrong, but I think this is just the beginning.”

Audry Nafziger, a sex crimes prosecutor in the district attorney’s office of Ventura County, Calif., has spent years of her career — including more than 100 cases, she estimated — trying to persuade witnesses in sex crimes cases to testify in court.

She never expected to be the victim herself, however.

Ms. Nafziger was a law student at U.S.C. in the early 1990s when she saw Dr. Tyndall at the student health center. He gave her an incorrect diagnosis of genital warts, groped her, took photos of her vagina and spoke of his sexual conquests, Ms. Nafziger said in an interview on Saturday. She was so disturbed by the experience that for all these years she kept her medical charts from her two visits with him. Yet she didn’t come forward with accusations at the time, she said, both out of embarrassment and fear of losing her spot in law school for “rocking the boat.”

When she saw Dr. Tyndall on the news, she realized that she, too, had been abused by him. “Predators hide in these large institutions because it’s a perfect place for them,” she said, adding that these institutions should institute safeguards and carefully examine each allegation. The institutions should also have enough people involved, she said, so that one person can’t hide the abuse.

Ms. Pryor didn’t know who to turn to for help when Mr. Bohonyi began paying special attention to her in 2014. He began sending her text messages, including one that said, “I’m interested in a girl whose name begins with the letter ‘e.’” She said he subsequently sent her a text message with a photo of his genitals and asked her to reciprocate, which she did.