mabye try talking to the parents again and let them know that if they do not help to resolve this then you will take it further as sometimes as good of a neighbour you can be them not cooperating just makes it hard it is just not fair for kids to be bullied i know this because i am going through it myself firstly my 8 year old son was now my 13 year old daughter is going through it

Sadly, some kids ar elike this and some parents are blind to what their sneaky "little angels" are like.

If it's gone on this long, tell the child you are ready to speak to the police and try and scare him.  But I would first call the police and ask what you should or should not say to him.

Life has enough stress when you are a parents and working, and you don't need this.

if it is out of school hours the police can be involved. the fact that you are getting stuff in your letter box, that is a form of vandalism. I would call either crime stoppers (I think that is Oz wide) and speak tothem about it. the fact that this child is violent you can get a restraining order on him to.

good luck.

That's awful for you, I am so sorry that you are both stuck in this situation.  I am sure that other people with more experience will offer you some advice, however I will add some links to existing advice and discussions on the site to get you started.  In the meantime, start a diarising every little deed this boy gets up to if you haven't already.  Include anything related to the bullying, including talking to his parents etc.