My son got suspended from school Friday because of a sex tape

I'm so upset and disappointed. My son (18) is in his senior year of high school. He graduates in 3 months. Friday I had to pick him up from school because I was called and told he'd been suspended. My son made a sex tape with his girlfriend, also 18, and they both posted it online. It got spread and airdropped around the school. I yelled at my son and asked him what he was thinking but he wouldn't talk to me. Just wtf. What the actual fuck.