The father of three daughters who were sexually abused by the former USA Gymnastics national team doctor, Larry Nassar had to be restrained after he lunged at him during a sentencing hearing in a Michigan courtroom.
Court guards pinned him to the ground before he could attack Nassar.
The chaotic scene began after sisters Lauren and Madison Margraves had finished reading their victim statements on the second day of hearings at a court in Eaton County.
Randall Margraves, asked the judge to grant him five minutes in a locked room Nassar, who he described as a "demon".
Judge Janice Cunningham said she could not do that and it was then that Mr Margraves ran towards Nassar, who was sitting nearby.
He was wrestled to the ground and put in handcuffs while Nassar was taken out of the court.
Victims' father tries to attack Nassar at sentencing hearing | Read more: https://t.co/cqyo9bUolL pic.twitter.com/wW3nXvd51Z
— RTÉ News (@rtenews) February 2, 2018
Lead prosecutor, Angela Povilaitis tried to restore calm.
"I understand Mr Margraves' frustration but you can not do this," she said.
The hearing resumed after a short break, with the judge addressing what she called a "scary" scene.
This evening, Mr Margraves apologised to the court.
He said he "lost control" during the hearing.
The judge said Mr Margraves would not be charged with contempt of court.
Nassar is also serving a 60-year federal term for child pornography convictions.
His case has sparked outrage after numerous victims accused USA Gymnastics and Michigan State University, where Nassar worked, of failing to investigate complaints about him going back years.
This week, the police department in Meridian, Michigan, apologised publicly to one victim for declining to press charges against Nassar in 2004 when she reported that he abused her.
The board of USA Gymnastics has agreed to resign in the wake of Nassar's sentencing, as did the president and athletic director of Michigan State University.
