My own personal feeling would be that if someone is a helpless psychopath, who is driven to kill, and is (under any system currently available) incurable, then it is necessary to imprison him, or her, for life. But I'd make the prison as comfortable, happy and stimulating as possible.

If someone kills in anger, then I'd hope that education in avoiding violence, combined with the necessity to pay reparation, would be an appropriate action. It might be that a time away from society could be a necessary part of this - but not for revenge, only to give the person a chance to move away from the violent way of living.

These are my personal opinions.

But really, what I was shocked at was the vengefulness shown in the poll. I'm reassured by those who say it's not typical.