Death is the end of life as we know it. We will all come to that. Death itself is not a deterrent. I think a far better punishment for that type of crime is to be found in cryogenics. Freeze 'em until we know how to fix that part of the brain. Be lots easier and cheaper. What we discover along the way might also be a sales pitch to make "depopulation" more palatable and even put it on an attractive volunteer basis. Course, ya'd really have to trust the guy or gal with the plug.