When the judge told him that was "not how our legal system works", Margraves sprinted toward Nassar and had to be restrained.
More than 30 victims have given statements so far during the hearing, which began Wednesday and is expected to stretch into next week.
Nassar has already been sentenced to 40-175 years for seven counts of first-degree criminal sexual assault in Ingham County.
At a news conference with his family and attorney hours after the outburst, Margraves apologized for his behavior, saying he was "remorseful" and "embarrassed" after losing his composure.
"I am no hero".
"I ended up delivering, unknowingly, all three of my daughters to a demon that had his own personal sick twisted agenda", he said. Now I know the main reason.
Randall Margrave was taken into custody in the courtroom Friday when he rushed toward Nassar after asking the judge if he could have "five minutes in a locked room with this demon". Their father, Randall Margraves, told the judge he was a "distraught father".
A man who tried to attack Larry Nassar in a MI courtroom has publicly apologized again and insists he's "no hero".
The father then bolted towards Nassar, seated in an orange jump suit behind a nearby table. "My daughters are the heroes, and all the victims and the survivors of this bad atrocity", he began.
You could hear people crying in the gallery as the chaos unfolded in the middle of the courtroom. The father followed up with a second request of one minute alone with the defendant.
The judge called for recess.
He was later taken away from the courtroom in handcuffs. Parents were also usually the ones physically taking their children to Nassar, and convincing them to go back. Give me one minute with that bastard.
"No, Internet", Freeman said, "we should not root for Randall Margraves to be let go by the bailiffs so he can continue his attacking lunge at Larry Nassar in MI".
A parent just wants to protect their children.
Sheriff Tom Reich said his officers will investigate what happened in court and send a report to the local prosecutor.
Judge Cunningham pointed out that Margraves heard new information during the hearing.
Cunningham said Nassar didn't authorise the statements and has disavowed them. It is unfortunate that this happened to the family and healing is what is needed now.