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 . ( CNN ) -- Another student has been arrested as the suspected shooter , police say . Comment:
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 . Comment: