Maxwell believed he was Carl Johnson from GTA: San Andreas when he committed the murder and believed the game was telling him to "stab a woman for seven days, it had to be a black Afro-Caribbean woman." The voices took over his thoughts and "made him do things." According to reports he was playing GTA and smoking skunk cannabis for months to the exclusion of everything else before the killing. Maxwell has since been diagnosed with schizophrenia. Yesterday he was detained indefinitely under the Mental Health Act after pleading guilty to manslaughter on the grounds of diminished responsibility.