Brazilian roller coaster accident kills 17-yr-old teen Alessandra Aguiar

Brazilian police say a part from a roller coaster came loose at an amusement park outside Rio de Janeiro, striking and killing a teenager.    Investigators in the western suburb of Recreio dos Bandeirantes say 10 other people were injured in the incident late Saturday night.    Police have identified the victim as 17-year-old Alessandra Aguiar, who was waiting in line to buy tickets to the roller coaster when a part came loose and hit her.    The city's health department said in a news release Sunday that 10 other people waiting in line suffered
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