6 year olds bad thoughts

My 6 year old, has told me that he cannon stop having bad thoughts.  He tries to do the right think but the bad thoughts always win.  Also, he "accidently" (is what he says) hurts other kinds.  He plays so rough with everyone.  We do not play rough at home,  He has been having these thoughts and actions for years.  We have taken him to a child psyhologist after he put a rope around another boys neck and told him to go down the slide.  The doctor just played board games and told me how to discipline him.  But thoughts keep coming back.  I am afraid that my son will grow up this way.  HELP

[Kevin Kennedy, Ph.D.]

It is possible that he is experiencing a type of Obsessive Compulsive Disorder that is charcaterized by obsessions more than compulsions. It would be prudent to arrange another evaluation to investigate this. If indeed he has an obsessive-type OCD, the clincian can help him to manage the situation.