Shock: David Nogueira asked to be excused from class to go to the bathroom and shot the teacher when he returned before committing suicide
Boy, 10, shoots teacher in class before killing himself with policeman dad's revolver.
A boy of ten shot his teacher in front of terrified classmates - then turned the gun on himself.
Policeman's son David Nogueira, blasted Rosileide Queiros de Oliveira, 38, twice with his father's .38 revolver in front of 25 horrified youngsters.
As the teacher lay bleeding on the floor, David ran out of the classroom into the hallway and shot himself in the head.
Ms Queiros de Oliveira was taken by helicopter to hospital where she was today recovering from her injuries. She has a broken hip and a broken kneecap.
David was also taken to hospital but died shortly afterwards.
The bloodbath happened at Alcina Dantas Feijao, a leading state school in Sao Caetano do Sur, in the Brazilian state of Sao Paulo, at 3.50pm local time yesterday.
Captain Robinson Castropil, from the Military Police, said: 'The boy asked for permission to go to the bathroom and when he came back to the classroom he shot his teacher.
'He then ran out of the room and shot himself.'
Police are investigating how the boy came to have the revolver and his motives for the horrific crime.
Friends said the day before the tragedy the boy had talked about shooting his teacher and himself, but never revealed a motive.
A neighbour of the child's family, Paulo Roberto Caetano da Silva, 49, described the ten-year-old as 'quiet and polite, a good kid'.
Paulo added: 'I can't believe he could have done such a thing.'
Security councillor in the city, Moacyr Rodrigues, said the boy's father Nilton Evangelista Nogueira has been a police officer for 14 years and has 'an impeccable service record'.