Very, very sad.
This is a good story to run by the teenagers in your school, if you have any. We are 'blessed' in that, I don't believe we have any kids who would get involved in something like this (right now). But I have seen some from other schools, at tournaments, who push point-sparring into close-to-full-contact sparring. I'm not against young men getting into full-contact sports, but without the guidance of experienced trainers and coaches the risk of serious injury or death grows dramatically.
This fight club sounds like a bunch of teenagers had hit upon something that might have been a great experience for them, if properly supervised and with adequate precautions--what an experienced boxing coach would have provided. it's so unfortunate that these teens decided to strike out on their own. At least by exposing our teens to this story, they will be reminded of the risks.
Regards,
Stan K