My belief is that you're wrong. Don't get me wrong, you're entitled to your opinion.
Life is something special, yes, a 'privilege'. On the other hand, life is different for anyone.
If you would've been in that guys situation, with his education, his thoughts and his situation, you would've done the same thing, most likely.
I think you're saying that severe crime dehumanizes people to a point where other humans are allowed to kill them. I feel humans should néver be able to decide whether one can be killed or not. We can lock them, sure - but they, too, are human being with a for them perfectly sound reason for their crimes ('lack of reason' being a reason as well).
If someone rapes or murders someone, they should be locked away - a long time. They mentally or physically destroy someone's wellbeing or life by that - and they deserve a fitting punishment. Two years is absolutely absurd - ten to fifteen years would've been more fitting, but then again, maybe such a person deserves a second chance. We all do stupid stuff, we can all get angry or sad and some people channel that in terrible ways. We all have problems. We all have issues. We should be glad our issues or problems don't push us over the edge.
If someone kills in cold blood, planned and feeling the other life is unworthy, still, we shouldn't take his/her life. We should give him/her a punishment worse than that - lock him up to overthink what he/she has done.
As long as they don't say 'Well, but I was drunk'. I hate it when they do that. It's your own responsibility whether you drink too much. Pfft.
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