Jennifer Crumbley, the mother of the teen who killed four classmates at Oxford High School three years ago, wants her conviction overturned.

The Oxford High School shooter's mother, Jennifer Crumbley, is seeking to overturn her conviction, citing a trial 'tainted from top to bottom' in a new court filing.

Jennifer Crumbley says the prosecution withheld key evidence in order to convict her and spare school officials from liability in the school shooting.