WHO ARE THE REAL MONSTERS?!?!?!?!? MAFIA T2 GAME OVER

The issue with this is that the only way I would know bigfoot stopped my kill before dratini saying "bigfoot can stop a kill" is... by bigfoot actually stopping my kill?

You've got a point but
either you somehow have two guns or one out of "you shot Ix" and "you shot Mirdini" is false

and in any case none of the answers account for both 1) cD getting shot and 2) Ix not dying given the premise that Mirdini, Ix and cD were all shot.

I know very well that my kills can be redirected because on the first two nights this happened. So the most likely scenario is "[cat] shot at Ix but hit dratini."

Which... works if Dratini made himself a bodyguard I guess? I still don't understand what's up with bigfoot at all, can you explain what you could do with it again dratini?