Surely a lot of people who do not care about the consequences, don't care because they've not stopped for a moment and thought about it? I don't think many people can not care about the consequences, just haven't stopped to think.If they don't care about the consequences, do they not deserve to die for it then?
So because somebody may not think before mudering somebody (many examples above; people coming into your home, people murdering loved ones etc) they also deserve to die?