http://www.fimfiction.net/story/92801/why-am-i-crying

“For as long as any of the Cutie Mark Crusaders can remember, Diamond Tiara had always been the biggest bully they knew. But when that said bully dies in an accident, each of them starts to go through their own experience in this sudden change in their lives. One will go through a trial of guilt, believing the blood of Tiara lies on her. Another shall lose her innocence as the prospect of death haunts her daily. And finally, one will wonder if it’s wrong to feel no sorrow for such a mean soul lost, but how mean really was Tiara? Each will learn more about themselves and about the pony who they all thought they knew before she is laid to rest.”