While I'm not against the death penalty, there is something that I have to comment on:
Consider, though, that most murders aren't pre-meditated and are mostly temporary breakdowns in which you lose control and maybe lash out at someone, or grab the closest thing to you, resulting in the death of the person the receiving end. If you lose enough control to murder someone, when you're in that state of mind, one of the last things that you'll be thinking about are the consequences - particularly, "Oh, I shouldn't kill him, I might get a lethal injection!"
But that's my point!
If there was a much more severe penalty for committing murder, it WOULD be something that would flash in a person's mind before killing someone, premeditated or not. If our country still used the electric chair, you can bet that the thought of murder would never, ever, cross my mind.
Not to mention, crimes that aren't pre-meditated, and only occur once, aren't usually given the needle, unless it's a serial case. I'm not saying that ALL murderers should be killed, but I do think that all serial murderers, pre-meditaded murders, and serial rapists deserve to be.
A person does have the right to have an appeal, but I'd say only ONE appeal, not several. If someone is put on death row, especially now, it's for damned good reason, and irrefutable evidence.