The first U.S. parent to be held criminally responsible for a mass school shooting committed by a child asked a Michigan judge to throw out her conviction Friday, arguing that her trial was spoiled by the prosecutor's failure to disclose key details about two major witnesses.

Jennifer Crumbley is currently serving a 10-year sentence for involuntary manslaughter in the unprecedented case

In a first-of-its-kind conviction, separate juries found the parents negligent and liable for the crimes committed by their son, then-15-year-old Ethan Crumbley, who committed a mass shooting and killed four classmates at Oxford High School on Nov. 30, 2021.

The first U.S. parent to be held criminally responsible for a mass school shooting committed by a child is asking a Michigan judge to throw out her conviction (AP video: Mike Householder)