Death penalty from the way I see it is just an easy way out for someone who has committed a grievous crime against the state either by killing someone else or treason. The reason for that is because when he is killed, it would not bring the person he killed back to life neither will he have enough time to blame and judge himself for the wrong doing he committed which is the most important punishment to be given to anybody. So, it should be abolished and replaced with life in prison without an option for parole under any circumstances.
You have a great point there my friend, but you see, it's easy to say such as what you have said in your post when you haven't experienced losing someone with murder. You see, i used to believe the same as you, but when it happened to my best friend, whom i treated as my only brother, it was really devastating on my part. It killed me inside. I couldn't care any less if he suffers a lot or not, i just want to see him sitting on that electric chair shaking. And savor every moment till he dies.
You're looking it at in the wrong way. Why on Earth would you keep someone in prison for the rest of his life if he's living on the tax money from other people, also all of them who get the 50+ years of prison at 20+ years of their life? Are they going to be any productive when they get out at 70years old? No. Death sentence isn't something for retribution or a revenge, it should be something to clear out those who are living lives in prison from the money of other people.