Their behaviour could be because they were trying to cover their backs and not for more sinister reasons but I understand why you are worried. The home schooling sounds like it could get you into more bother, but only because her guardian is opposed to it. Plus I don't think you would be able to sleep knowing her brother is at school dealing with bullying. As has been suggested already, their are apps that give instant alerts. Documenting your own situation is a great idea, I couldn't agree more with that. Some great advice here mate. It looks like you are in safe hands. Maybe a good idea to get a rapour going with your local police force? They are supposed to be impartial so if they know who you are and they know your a good person then that is a very strong character witness to have. Take care of yourself bud. Your already a step ahead of many of those you have read about because you are aware of possibilities. That is a good thing and this advice will see you even more secure. There is only so much you can do.
I have a friend who's a Captain in the police but he's in charge of the traffic division- but it couldn't hurt to call him. Most people know me from when I managed the cemeteries- everybody dies or has a relative that does... sooner or later, I used to joke, they all came to see me.
Dude, stop it. That is some image in my head now... The grim reaper in cammo, wearing a hockey shirt ;)
Certainly wouldn't hurt to put a nod his way. Sometimes it's not what you know, but who you know. Sad but true. Chin up and keep smiling :)
(would give you an upvote but i'm so low it would be worth about 2c)
It's always good to have a cemetery you never know when it will come in handy ;=}