Will God Forgive Murder?

The Book of Mormon suggests he may for those who repent and convert to God:

And behold, I also thank my God, that by opening this correspondence we have been convinced of our sins, and of the many murders which we have committed.

And I also thank my God, yea, my great God, that he hath granted unto us that we might repent of these things, and also that he hath forgiven us of those our many sins and murders which we have committed, and taken away the guilt from our hearts, through the merits of his Son. —Alma 24:9-10

See also Alma 24:11-19.