'Sane' has nothing to do with criminal vs victim. It's also a myth that you get off easy if you're legally declared insane - sentences for those people are so routinely longer than regular prison sentences, that lawyers advise against pleading insanity.

In any case, if you're a defendant in criminal court, you're being tried as a criminal, whether or not you're a victim. Defendants aren't declared 'victims' and tried differently.