The author sought to assess the effect of 11 September 2001 on the rate of suicide & homicide in England & Wales. He found that the number of suicides reported in the month of September 2001 was significantly lower than other months in the same year & any September of the previous 22 years in England & Wales. A suicide reduction in men occurred in the week starting Tuesday 11 September 2001, while a reduction in female suicide occurred during the 4 weeks following the attack. There was no evidence of a similar effect on homicide. (11 refs)