Maybe I'm overreacting again, but better safe than sorry. As far as tech, virtually all of the little I could offer would just be repeating what I heard from someone who's already responded, so I won't confuse the issue. Rightly or wrongly it seems to me that stalking is stalking, and the best way to find out if any laws have been broken is to ask law enforcement (since online traffic crosses state and national boundaries you might consider talking to the FBI as well as local police. ) I don't want to fuel your fears, but if someone's willing to take pains to track you all over the internet it wouldn't surprise me if they're trying to track you elsewhere, which definitely seems like something that warrants contacting the authorities so it doesn't become something more serious. If nothing else, sending unsolicited and undesired porn ought to warrant a ban on most any site, and I'm pretty sure hacking peoples data is illegal (I bet the FBI knows for sure. )

That really really sucks, and I wish you weren't being subjected to it. I hope and pray it all turns out OK.