Would mentally ill schizophrenics that hear God tell them to kill or drink people's blood have a case suing?

i doubt it .. you would have to prove that you are hearing the voice and how could you prove that you heard a voice and then you would get into the whole hearsay arguementand then you would have to prove that the voice you heard is gods and the you wold have to prove that god actually exists and it would go on and on and on .. so i would say no