Its a canaard that life in prison is worse than the death penalty, on the convict.
I had to look up canaard...Not a reply to you G.T. just an observation in general.
While in prison, they get to visit their children, they get to see their grandchildren grow up, they get free healthcare, that the rest of us pay for, they get to live long full lives, that produce nothing of note. And if they actually get out, they have the chance to murder your family members then, or perhaps even you(speaking generically).
Good luck in choosing to try to abolish the death penalty, hope no one murders your child, or mother, or sister, or your entire family. Believe me, there are things much worse than actually dying, there's living.