How to judge three people with blood in the clock tower crocodile

1. The first night, the crocodile poisoned the maid. That night, the maid woke up with her own ability and got false information. The next night, the maid died of poisoning.

The crocodile poisoned the clown. The next day, the clown was proposed to be executed, because the ability failed in the poisoned state and the clown could not be immune to the first death.

One day, the crocodile poisoned the pacifist. The next night, the exorcist chose to start the ability to fight the pure demon. Although the pure demon can't wake up tonight, no one is poisoned. But it doesn't affect the pacifist who was poisoned yesterday to die tonight.