“Therefore it can be concluded from the available evidence that Francis Mitchenson is predisposed by his condition of mental disorder of paranoid schizophrenia, alcohol dependence and cocaine misuse to act in a violent manner either by each individual factor in their own right or due to comorbidity of schizophrenia plus substance misuse. If and when Mr Mitchenson is ill with signs and symptoms of psychosis due to relapse of schizophrenia, intoxicated by alcohol, heroin or cocaine, he also has predisposition to act in an irrational manner.”