Suffering will never bring about justice for crimes already committed. Punishments will never bring back the dead or repair damage done. However, punishments may prevent future crimes if they are drastic enough. People who commit murder out of blatant disrespect for life should be put in their place, dead, they don't even belong in prison just as animals don't. Just like they kill violent dogs everyday. If people act like vicious animals, then they probably are. Why waste tax dollars keeping them in a kennel?