The 54-year-old is accused by more than 265 women -- including Olympians, gymnasts, and collegiate athletes -- of molesting them over a more than two-decade career.
The FBI became aware of Nassar in July 2015 when it was contacted by USA Gymnastics, which trains athletes for the Olympics.
Randall Margraves was blocked by an attorney, tackled by sheriff's deputies and hauled out of court yesterday. He later apologised, saying he had lost control.
Nassar, 54, worked at Michigan State University and USA Gymnastics, the governing body that also trains Olympians. He was sentenced Jan. 24 to 40 to 175 years in prison.
The father of three sexual abuse victims lunged at Larry Nassar in court Friday, bringing the former USA Gymnastics doctor's final sentencing hearing to an abrupt halt while order was restored.
Disgraced gymnastics doctor Larry Nassar is expected to hear from more victims who say he molested them when his third and final sentencing hearing resumes.
Nassar, a former Michigan State employee, was sentenced to 40 to 175 years in prison for molesting young girls and women under the guise of medical treatment.
Many confronted Nassar face to face in the Michigan courtroom, describing abuse in his home, at his Michigan State University office and while he worked for USA Gymnastics, which trains Olympians.
More than 150 women and girls accused Nassar of a pattern of serial abuse dating back two decades.