I honestly think there would be no benefit to keeping the man alive. This is an awful atrocity, in anyones book. Apparently not a radical per se. Radicalisation is a real problem from supposed both sides though
I feel sick that the human race can do such things towards other people from the human race. It should start in understanding, not blowing peoples brains out. It's that simple.
All politicians are to blame (well, the ones who have power).