A young girl , 13 , is fatally shot on a school bus taking her to a charter school in Miami . Her 7-year - old brother witnessed the shooting , police say . Another student has been arrested as the suspected shooter , police say . The bus was carrying seven other students .
A Florida girl , 13 , is fatally shot on a school bus taking her to a charter school in Miami . Her 7-year-old sibling witnessed the shooting , police say . Another student has been arrested as the suspected shooter , police say . The bus was carrying seven other pupils .