If you are the murderer in the dream, then such dream hides the aggression and anger that in in you. You might be angry with someone particular, or simply have too much pressure at this time of your life and feel like killing someone. If somebody else is trying to murder you, but you escape it, it means that you will avoid unpleasant experiences in your waking life.
Murder dream meaning
Read more about dreaming of Murder in other dream meanings interpretations.