Category:Criminally Insane

A mental defect or disease that makes it impossible for a person to understand the wrongfulness of his acts or, even if he understands them, to distinguish right from wrong. Defendants who are criminally insane cannot be convicted of a crime, since criminal conduct involves the conscious intent to do wrong -- a choice that the criminally insane cannot meaningfully make.

(Too) Often is the case that some costumed villains fall into this category and in fact even some vigilante heroes as well. The line is thin and while it is often hard to gauge, the law ultimately dictates this label, almost always with sentencing to a psychiatric prison or asylum, instead of a standard incarceration facility.