Incomprehensible logic

The news that Jakarta embassy bomber 30-year-old Iwan Darmawan Mutho, alias Rois, is sentenced to death by firing squad has obviously "delighted" Foreign Minister Downer. He suggests that it will act as a deterrent to other suicide bombers. "Mr Downer says Rois's conviction will deter others from carrying out similar terrorist activities" reports the ABC.
Now I can see the hole in the logic!
What is perhaps more disturbing is how easily we can be delighted by the death penalty. Even though this absurd argument, that those who would give their lives in armed struggle are likely to be deterred by the death penalty, rather exposes the specious nature of the deterrent factor logic , it nevertheless reminds us of how easily seduced even the best of us might be by its simplistic logic.
We should never assume that the struggle against the death penalty is over.