Why are there so many murders in Brazil? 19659012] The identities of the victims and the alleged attackers – who were said to be students at the school – have not been released.
The motive for the shooting is not clear, police say.
"I was in the classroom during our break. I thought [the sound] was from bombs. When I realized they were gunshots, I stayed there. I only left when the police arrived," teacher Sandra Perez told O Estado de S .Pdf newspaper (in Portuguese).
São Paulo state governor João Doria tweeted that the victim had been "cruelly murdered".
"When I arrived at the school … it was chaotic. Teachers, workers, everybody was running, "Juliano Simões de Santana, who lives near the school, told Folha de S.Paulo newspaper (in Portuguese).