A trombone player in my band died yesterday

I never talked to him but I cried so hard. He was my age- 15. He had an entire life ahead of him...
He was firstly injured from getting hit by a truck while biking home but then a day later, a lady saw him hanging on the guard rail and called the police..
Even though I never talked to him, it still hurt so bad because he was my age and it was kind of scary because I never had a classmate of mine die
and then everyone else in my class didnt even care like what the hell..