Mental health killings 'falling' / BBC News,1 August 2008

http://news.bbc.co.uk/1/hi/health/7535446.stm

"The study says killings such as that by schizophrenic Richard King are rare
The number of killings by people with mental health problems in England and Wales has fallen by two-thirds in the last 30 years, a study has found. Writing in the British Journal of Psychiatry, researchers say the fall is probably due to improvements in psychiatric care."