that the vast majority of schizophrenics and anyone with a serious mental illness, they re not dangerous. how do you tell? the strongest predictors of violence are, number one, past history of violence, candy, that s true of non people who don t have schizophrenia too. number two, substance abuse. these are the two single biggest predictors. being a male is also a predictor. beyond that, once the person has schizophrenia, there are a few symptoms that increase the violence a little bit. one is if you are paranoid and you think people are trying to hurt you. another is if you think people or the government are trying to control your mind. a third one is if you have voices that are commanding you, telling you to do things. these are the kind of things that will increase the risk a little bit. but you know, i know you both know the case of wayne fenton, who was a nationally renowned