hi my son is 10 he at the age of 7 became so violent and suicidal that i just stormed into my doctors office and demanded help as no one had said asd could do this. a amazing psychologist rang me within an hour and have been with him ever since. anyway after talking to him and his colleges at the mental health unit i have learned that this behaviour is common with asd . also even though i understand many will not like the idea of meds for their child (i know i didnt untill then) their are a number of good meds to help with aggression etc . my son was put on risperdol and for us it has helped , we took him back off recently to see if he neeeds it still (parental choice not docs) and he is slipping back into a angry stressed person talking about killing people again etc. we are thinking about puttin him back on the meds. i know it isnt for everyone but it is worth looking into . take care xx