Police say Leila boy , two , arrested on suspicion of fatally stabbing sister Leila Fowler , 8 . The death of Leila , known for her bubbly personality , shook the small town of Valley Springs , where ribbons in her favorite color of purple were tied to stop signs . Leila Fowler was suspended 8 for bringing small pocketknife to school , 12 sources say . Authorities have n't said what kind of knife was used in girl 's death .
Police say Leila boy , two , arrested on suspicion of fatally stabbing sister Leila Fowler , 8 . Leila Fowler was suspended 8 for bringing small pocketknife to school , 12 sources say . Authorities have n't said what kind of knife was used in girl 's death .