murdering 21-year-old Jason Comerford in February 1994, in Manchester city centre.Jason was fatally stabbed to the neck after a night out.But Strike pleaded guilty to manslaughter, on the grounds of diminished responsibility.He has remained in a mental health facility since 1997, after being diagnosed with paranoid schizophrenia.A key breakthrough in the investigation of Jason's death came when more advanced DNA techniques became available to GMP's cold case unit.Get the latest updates from