Sending hugs your way muma3. You have done the right thing, nothing is more precious than your children.
Good luck with home schooling, I have read some excellent articles about it and it works really well, especially if you can pool teaching. There are also a couple of "internet schools", whcih will give formal teaching for about 3 hours a day, whilst you do the rest. I will try and locate the article if you are interested.
My ds1 got assaulted by another pupil getting off the school bus. This was on the last day of term before Easter, and was in direct retaliation to my complaint about his previous bullying.
The school were unprepared to do anything before school reconvened after the holiday, so I DID report it to the police - who turned up 3 days later to take the statement(that important eh?) I had taken photos (just as well) and they had a word with the boy and his parents. He gave some cock and bull story about a misunderstanding and the Police believed him and didn't take it any further. My son, although younger, is VERY tall and stocky for his age - they took one look at weedy bully and ASSUMED that my ds could fight his own battles!
The school did exclude the bully, but for only a day.
Feeling of unfairness abounds, BUT, it did stop him reoffending and ds is far more sttled now. If he hadn't been I would be doing the same as you - keeping him out.