My online friend is a pedophile

Hey 20F. I have this male friend on Discord that I've known for about 3 years now and who is 2 years older than me. He always was a pretty weird dude and wannabe edgelord but we like chatted and played video games together and we also vented to each other as we both had depression and had gone through a lot of trauma. He would just listen and not judge or care anything I said. However, I never ever saw his face or heard his voice like ever telling me he just was shy and just preferred texting even when we were on call. Recently, we shared intimate details of things we were attracted to sexually and he sent me an .onion link to this website that could only be opened in Tor browser. When I opened it, It was a CSAM website. I closed it immediately horrified and he said to me that he liked to jerk off to little girls on there and that he is willing to fuck an infant and that he wants to become a serial killer. I blocked him and I then reported him and that website to the police. I feel sick and traumatized. I hate this. That man is dangerous.