Shocking video shows the moment the mother of school shooter Ethan Crumbley confronted him for the first time after he murdered four students. After the brief encounter ends, Crumbley was only concerned about his cat, Dexter. The video of the confrontation was played for the jury at the trial of Ethan Crumbley's mother, Jennifer. She's on trial for manslaughter, the first time a parent has been tried for killings committed by their child.