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

An Oakland County judge on Friday heard arguments surrounding Jennifer Crumbley’s request for a new trial or acquittal. Oakland County Circuit Judge Cheryl Matthews said she will issue a written decision at a later date.