There are all kind of possible accidents, DUI is the kind where someone decides that they take the risk of other lives. Similar to the recent accident in Italy where a ski lift was purposely not maintained to avoid stopping it. They knew that they are risking someone's life.
With this said there are two cases:
- the one when someone drives under DUI and I have to kill him to avoid a possible direct accident towards me or my family (by pushing his car from a cliff or something). I would nit hesitate.
- after the accident. I am for a death sentence for specific cases where it is a matter of getting rid of human trash (rapes, murders with premeditation, paedophilia, ...). In that case it is a matter of social hygiene. In the case of DUI I am at the edge, with the possibility of someone to spend years helping the society to try to redeem