"The only weapons she had in her bag were crayons and books". This is the cry of an elderly man who is trying to understand why his 8-year old granddaughter, Ágatha, was shot in the back and killed by the police in Rio de Janeiro, Brazil. And the saddest part of it is: we can no longer say it is an accident. Ágatha is the fifth child killed by government forces this year since Governor Wilson Witzel adopted a policy of "shoot first, ask questions later".

As a mother, I refuse to keep watching this carnage as I hold my son safely at home and poor families fear to let their kids go to school. I am sure you feel the same. A group of Brazilian MPs might be giving us a way to stop these murderous policies; they just filed a lawsuit at the Attorney General's office, asking for a formal investigation against Governor Witzel.

We know Brazil cares about Rio's international image - it is, after all, what keeps cash flowing and tourists coming. Let's let them know the world is watching - and demanding justice!

When 1 million of us sign this petition, we will publish ads in major international newspapers in key markets, warning tourists not to come to a city that kills its children. Unless the Attorney General listens to our request.