Alma 29:5; 3 Ne. 30:2; Alma 54:7; refer in this text to Alma 39:5-6
“We do know that there are murders committed by Gentiles for which they at least can repent, be baptized, and receive a remission of their sins.” (Bruce R. McConkie, New Witness for the Articles of Faith, p. 231)
“Even among willful murderers there are grades and categories. There are … [those] who kill for sadistic pleasure. There are those who kill in drunkenness, in rage, in anger, in jealousy. There are those who kill for gain, for power, for fear. There are those who kill for lust. They certainly will suffer different degrees of punishment hereafter.” (Spencer W. Kimball, Miracle of Forgiveness, pp. 130-131)