Should we as a society sympathize or try to defend criminals, in particular dangerous ones? How should we deal with them going forward?

My solution is simple and practical. A bullet doesn't cost much nor a shot right to their head doesn't take much effort for the justice system to get rid of these damn roaches from our society.
Should we as a society sympathize or try to defend criminals, in particular dangerous ones? How should we deal with them going forward?
Should we as a society sympathize or try to defend criminals, in particular dangerous ones? How should we deal with them going forward?
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