University classmates gathering

Last night, i joined in university classmates gathering. It is the first reunion after we graduated. How time flies. Most classmates have gotten married and become parents. I am so happy to meet them again. But there is a sad message that one female classmate is has gone. She died in a car crash last month. I am so sorry. May good people be free from mishaps all their lives.

Very good English, no big mistakes, easy to understand.  You could also say "was sad news" instead of "is a sad message".

Sorry to hear about your classmate.