I have been in more than one church service in which someone (usually the music minister) enthusiastically states, “And when we get to heaven, we can do this all the time!”
Christian tradition talks about life after death quite a bit, in fact a lot of faith communities focus on the saving act of God in Christ is to keep our toes out of the fires of hell.
Both the Bible and The Book of Mormon, which are both historical accounts of a more primitive people, seem to support death as an appropriate punishment for people who have intentionally taken another life.