Police said 13-year-old Lourdes Guzman was shot on Nov. 20, 2012, while riding a Florida school bus with her 7-year-old sister. A 15-year-old boy was charged with manslaughter a day later. Police say the boy allegedly took a gun out of a backpack and showed it to other students on the bus. Investigators said he fired it once in an apparent accident, striking Lourdes, who later died at a Miami hospital. Eight other children, including Lourdes
Police investigators stand outside a school bus after 13-year-old Lourdes Guzman was shot early morning on Nov, 20, 2012 in Homestead, Fla.
Lourdes Guzman, 13, in an undated photo
Miami-Dade police spokesman Alvaro Zabalata briefs the media after 13-year-old Lourdes Guzman was shot on a school bus early in Homestead, Fla. Miami-Dade police said 13-year-old Lourdes Guzman died after she was shot by another student on the school bus.
Lourdes Guzman, 13, in an undated photo
Police investigate the scene of a shooting on a school bus in Homestead, Fla., on Nov. 20, 2012. Miami-Dade police said 13-year-old Lourdes Guzman died after she was shot by another student on the school bus.
Lourdes Guzman, 13, in an undated photo
Police investigate the scene of a shooting on a school bus in Homestead, Fla., on Nov. 20, 2012. Miami-Dade police said 13-year-old Lourdes Guzman died after she was shot by another student on the school bus.
Lourdes Guzman, 13, in an undated photo
A police investigator photographs school backpacks taken off a school bus after 13-year-old Lourdes Guzman was shot on Nov, 20, 2012 in Homestead, Fla.
Lourdes Guzman, 13, in an undated photo
Screenshot of 13-year-old Lourdes Guzman's profile on Facebook