Schizophrenia is unfortunately one of those mental disorders that suffers from not only distorted media headlines but the affects of popular culture with over 70% of characters on television with said disorder portrayed as being violent with more than one in every five being portrayed as a murderer. Contributions from these sources have helped create the commonly held belief that not only does schizophrenia mean a sufferer has a split personality but that people with this disorder are dangerous. The truth of the matter is, and research supports these facts, that people who suffer from schizophrenia are no more violent than people who do not have the illness.
For a reason that i have been unable to put a finger on, six of the top seventeen cases of murder/mass murder/serial killing have taken place in Asian countries (China, Japan, Korea). This could be due to any number of reasons, the first one that comes to mind is population size, but i’ve not done any research into this so it is simply guess work at the moment.