The facts include:
Roeder premeditated the murder.
Roeder carried out the premeditated murder.
Bring whatever other facts you want into play ... they don’t change the 2 facts above.
But “murder” means an unjustifiable killing of a human.
How about an executioner that flips the switch that kills a man strapped down to a table?
NO you left out facts that precipitated Roeder’s heroic action:
Fact: Tiller premeditated and accepted money for killngs in his abbatoir.
Fact: Tiller carried out these premeditated murders daily and deliberately.