Well, I have all three of those items, but I get to "what happened after they turned on each other," I've tried all the items I have and none of them work.
But you can't beat the game with just the knife, the journal, and the play--if you have only those three items, it won't warn you that you need more evidence, but you get stuck at the "what happened after the mutiny started" stage and none of those three items will get you past there. That's a softlock state.