Prosecutor's Office asks jury to convict father of Oxford High School attacker: “He did nothing” to prevent deaths, claims. James Crumbley, father of the murderer of four students at a Michigan school, is accused of involuntary manslaughter and is already awaiting the jury's verdict.

The young man's mother, Jennifer Crumbles, was found guilty of the same charge last month. The Crumbleys are the first American parents charged with criminal responsibility in a mass school shooting committed by a child.