"Who knows. Think about it yourself. If you think you can build up some blue truth for how a closed room murder can be committed without entering the room, then I'll respond with the red truth. ...However, I only need to destroy one of the blue truths you'll be presenting from here on out. In other words, even if you do manage to use the blue truth and explain this away with some long-distance closed room murder trick X, I don't necessarily have to counter that with the red truth."