Before his trial for the Dando murder, George was diagnosed with Asperger syndrome. Prosecution psychologists studying George concluded that he had several different personality disorders: antisocial, histrionic, narcissistic and possibly paranoid, as well as somatization and factitious disorders and attention deficit hyperactivity disorder. He was said to have epilepsy and to have an IQ of 75; a prior assessment found George to be of average intelligence. George has also been likened to a "lone obsessive, Walter Mitty-type figure" for his desire to impersonate famous figures.