To see a murderer kill someone in your dream foretells sadness caused by the misdeeds of others.
If you are a murderer in your dream, this means you will be involved in some dishonorable adventure which will damage your reputation.
To dream that you are killed or being pursued by a murderer, foretells that enemies are working against you.
If you dream that a murderer spares your life, you are hopeful that an enemy or rival will stop working against you in real life. Be careful about relying on hopes, however!