Why is my heart so broken over the death of a stranger?

Im 14. I read about this girl that died and now that i look at her pictures, her facebook, twitter, etc I think she was everything i wanted in a girl..smart, pretty, played sports, and she was just a sweet girl..I asked this question earlier but im still feeling bad for her..and now that i know i will never meet her (unless in heaven) I just wanna break down and cry..This is so out of character for me..Im sure i wouldve LOVED this girl