Prosecutors: Gun went off in girl’s backpack at LA school

Parents reunite with their children at the Salvador B. Castro Middle School near downtown Los Angeles Thursday.

Los Angeles Police cordon off the Belmont High School in Los Angeles Thursday. (Damian Dovarganes/AP Photos)

LOS ANGELES — A semi-automatic handgun went off accidentally inside the backpack of a 12-year-old girl in a Los Angeles middle school classroom, sending a single bullet tearing through the wrist of another girl before hitting a boy in the head, police said Friday.