It's kind of hard to educate career criminals who don't care if they live or die, and consequently don't care of you do either. I disagree. The death penalty may not be a deterrent, but it is a solution.
In what way does it matter then if they spend their lives in jail instead of killing them?
Society should defend themselves aganst criminals,
that should be the point of the court system, not to kill them off.
And I can see how killing criminals seems like an "easier" solution (if you could ever call taking a human life that) than to put money into resources to work proactive, to fight crime
before it happens. That is much harder, but I for one is not willing to throw in the towl and go "naw, let´s just kill them instead".
And the death penalty really isn´t a solution. The crime has already been commited so it´s too late to do anything about that, and as has been proved in many surveys, the death penalty does not scare other people off from commiting crimes.
and..
it has been prooven that innocent people have been executed
and even criminals have families.
Up until 2005 it was even legal to execute 16 year olds in US, that has since then changed at least