If%20the%20maid%20murdered%20Uncle%20Alfred,%20then%20the%20motive%20was%20revenge%20or

1
If the maid murdered Uncle Alfred, then the
motive was revenge or the chauffeur was an
accomplice. Either the maid murdered Uncle
Alfred or the chauffeur was an accomplice. If
the motive was revenge then the chauffeur was an
accomplice. If the valet murdered Uncle Alfred
then the weapon was a gun. If the weapon was a
gun then either the butler murdered Uncle Alfred
or the chauffeur was not an accomplice. Either
the valet murdered Uncle Alfred or the weapon
was a gun.
Whodunnit?