00426nam a22000977a 4500020001800000100001900018245001700037260004100054490000500095650022800100  a97800020004511 aBernall, Misty00aShe Said Yes  bHarper Collins Publishers Ltd.c19990 a 4aCassie Bernall, 17-year-old junior at Columbine High in Littleton, Colorado, murdered.  Her mother recounts the dramatic transformation of a daughter who had once started down a troubled path similar to that of her killers.