Panty Black Mailer

I was on a chatroom has a PantyGun wearing boy, I was sending pictures of me in my pantyguns pantygunning, some one I sent pictures to found my address and FB page now he is black mailing me. He has said if I don't wear the pantyguns to work and take pictures to prove it he will make copies of the pictures and post them all around where I live! what do I do? I love panties but I don't want other to know I wear them