His special ability states that Yorick gains 1 clue token when a monster is defeated.
Is that if only Yorick defeats solo or assists in a monster killing? Or more literally if ANY investigator kills a monster, even if Yorick is not in the same location?
I.E. Yorick is in the 'Office' where say Rita Young slays a cultist in the Kitchen. Yorick did not participate in combat, more to the point, he's not in the same room, or line of sight...so would he still acquire a Clue since a 'monster' was defeated.
Any monster anywhere.