devtrackers.gg
You can report this piece of shit right here: https://help.ea.com/en/contact-us/?product=apex-legends&platform=pc&category=report-concerns-or-harassment&issue=reallife-threat&isContactForm=true
If your platform is PC.
If it's console than
PS4
XBOXONE
I reported this guy for you btw.
+1 on this, I'm so sorry you had to experience that.
If you ever have an experience like this again, please do report it, that way we can work to make sure it doesn't happen again and to other players.