Sir: You have added to the stigma carried by mood disorder sufferers by claiming that the man who attacked a south London congregation with a sword "suffered severe depression" (report, 29 November). Do you have a psychiatrist's assessment, or was that just word from local police? I suffer from severe depression, and have worked with fellow sufferers for some years. It is far more common to find guys like us who can't even get out of bed in the morning, because consciousness of living is too awful to contemplate, than to find someone who acts out any form of aggression against anyone else.
DAVID J BOGGIS