Cornell professor Joseph Margulies discusses the groundbreaking prosecution for involuntary manslaughter of Jennifer and James Crumbley, parents of Ethan Crumbley, who killed four classmates in a school mass shooting. Professor Margulies highlights legal and moral complexities surrounding causation and parental responsibility, questioning whether the parents’ negligence in not foreseeing their son’s violent actions, despite clear warning signs, justifies holding them criminally liable for the murders. Professor Margulies also reflects on the broader implications for societal expectations of parental foresight and the limits of criminal law in addressing such tragic events.