Dreaming that you have committed a murder indicates that you are putting an end to an old habit and your former ways of thinking. This could also mean an end to an addiction. Alternatively,  you may have some repressed aggression or rage at yourself or at others.  Dreaming that you witness a murder indicates deep-seated anger towards somebody. Consider how the victim represents aspects of yourself that you want to destroy or eliminate.  Dreaming that you are murdered, suggests that some important and significant relationship has been severed and you are trying to disconnect yourself from your emotions. It also represents your unused talents.  Note also that dreams of murder occur frequently during periods of depression.