I have my Facebook set to the strictest communication filtering possible and I have been receiving threatening messages by multiple people. I've gotten 3 so far over 2-3 months. I know NONE of them personally and have only heard of them through someone I used to be friends with. They are all her friends and one even admitted to her being the one saying these things about me/sending these people after me. I'm being told not to go to certain events anymore or I'll regret it and other things along those lines. Her and I stopped communicating in June. I don't know why she's continuing this. I have my Facebook on lockdown privacy wise. Blocked every single one of them. Have all of their names. What can I do about this? It feels like I'm being stalked almost and its getting out of hand.