  This strategy was pursued by Hector Geffner in  Geffner 1992 1990,  where he formalizes this simple causal solution to the Yale Shooting Anomaly. But the solution is presented in the context of an ambitious general project in nonmonotonic logic that not only develops properties of the preferred model approach and shows how to apply it to a number of reasoning problems, but that relates nonmonotonic logic to probabilities, using ideas deriving from  Adams 1975.  In  Geffner 1992,  the causal theory is sketched; it is not developed to show its adequacy in dealing with the battery of problems presented above, and in particular the Ramification Problem is left untouched.