Mark Hollis, who had been athletic director for 10 years, disclosed his decision to retire during a meeting with reporters on campus.
More than 150 girls and women asserted during Nassar's sentencing hearing this month that Nassar - also a former national gymnastics team doctor - sexually abused them under the guise of medical care in his capacity as an MSU or USA Gymnastics physician over two decades.
A MI judge sentenced Nassar on Wednesday to 40 to 175 years in prison after he pleaded guilty to seven counts of criminal sexual conduct in Ingham County and admitted to using his trusted medical position to assault and molest girls under the guise of medical treatment.
Meanwhile, the U.S. Olympic Committee is demanding all USA Gymnastics board members resign over the scandal.
Kyle Stephens, a family friend of Nassar who says he molested her for years at his home, says she told campus counselor Gary Stollak about the abuse in 2004, according to the Associated Press.
Tragedies are politicized? Perhaps Simon was talking about some internal strife on the Board of Trustee's, which has certainly been the case, but to most in the general public they are left wondering what the heck she is talking about.
One of the most egregious allegations was that an assistant coach was criminally charged for punching a female MSU student in the face, was allowed to keep coaching and then accused of sexual assault.More news: Wind Advisory 11 AM to 7 PM Tuesday
"I'm so truly sorry", trustee Brian Mosallam said, speaking to the scores of women who say Nassar abused them.
"Since my first day on the job as athletic director, my focus has always been on the student-athlete", Hollis previously said on Wednesday.
Some victims say they reported to Kathie Klages, who ran camps for teen gymnasts and was women's gymnastics coach until last February.
People attending the rally were encouraged to fill out a postcard with the salutation of "Dear Enabler (blank)" and to send it to a member of the board of trustees. And in 2003, before he was athletic director, he helped organize a nationally broadcast game between Kentucky and Michigan State at Ford Field. These changes and resignations of top officials are signs that the athletic community is on the right track, but this sexual assault case goes so much deeper than the top officials. "Never again can this happen", Dianne Byrum said.
"I just am kind of wondering if we're even close to finding out everything and who knew what and I do think that is gonna be problematic for Mark", said B. David Ridpath, Associate Professor of Sports Administration at Ohio University.
Hollis says he did not know about Nassar's abuse until the first survivor came forward in September 2016. "Had she ever received any information to cast doubt on the appropriateness of that trust in Dr. Nassar, she would have reacted immediately to protect her gymnasts". When you're the head of an organization and everyone below you fails, you fail too. They are all incredible people, awesome Spartans.
Hollis says he's already been interviewed by the Federal Bureau of Investigation and Michigan State University Police.