The Eaton County charges were related to incidents that happened at Twistars, a gymnastics facility in Dimondale, Mich. Nassar frequented the facility, and numerous women who provided victim impact statements said Nassar abused them there frequently.
The scandal surrounding Nassar has reverberated far beyond the sports world, sparking various investigations into why the U.S. Olympic Committee, sport governing body USA Gymnastics, and Michigan State University, where he also worked, failed to investigate complaints about him going back years.
Dressed in an orange prison jumpsuit with shackles around his waist, he read from note cards and said that the victim statements given in court had "impacted me to my innermost core".
"I am not convinced you truly understand what you did was wrong and the devastating impact you've had on victims, their family and friends".
There are also questions about why USA Gymnastics and Michigan State University didn't communicate with each other when the doctor fell under scrutiny - particularly in the summer of 2015, when federal investigators first began looking into Nassar.
Dozens of people gave victim statements last week in the Eaton County, Mich., courtroom.
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"It's impossible to convey the depth and breadth of how sorry I am to each and everyone involved", Nassar said. Nassar offered a brief apology in court on Monday to say: "The visions of your testimonies will forever be present in my thoughts".
The Times reported the videos showed Nassar kneading the legs of girls before moving his hands under a towel with ungloved hands between the girl's legs.
A total of 65 survivors addressed the court, Judge Janice Cunningham said. Judge Cunningham said on the first day of the hearing that the number of victims who had come forward had risen to 265, some of whom have chosen to remain anonymous.
When taken together, the two MI sentences add up to a minimum of 80 years in prison, and a maximum of 300 years.
He had been a doctor at the youth gymnastics club Twistars, which is located in Eaton County.
The fallout has led to the resignation of Michigan State president. "We must all start by believing victims when they tell, regardless of who the adult is".
The 54-year-old's life since then has been a series of guilty pleas, court hearings and prison sentences.
She said victim shaming and parent shaming "must stop".