[Sacajaweau]

Well folks, that's how it's done. If you ever feel like killing someone, just make sure you do enough stuff so you can be declared insane "at the time".

I wonder when the first case, using insanity as a defense, occurred??

The laws need to be re-written to stipulate; guilty but with penalties to include; lifetime pyschiatric incarceration when insanity is part of the defense.

[drungus]

I wonder when the first case, using insanity as a defense, occurred??

According to this at least since 1581 or so.