I assumed most bitcoiners held libertarian beliefs so it's interesting to see the responses in this thread.
And here you go!

Personally, I would strongly insist on death penalty abolition. And the primary reason is not the possibility of executing an innocent one (but this would suffice to ban this form of "punishment"), but the guilt of society in raising a villain. Humans are social beings, and murderers don't come to us from outer space. Putting to death even a proven serial killer means avoiding responsibility on the society part.