Having been trained to defend girls against sexual assault, the boy called other young men to help him confront the man and rescue the child.
"It would have been fatal," said Collins Omondi, who taught the boy as part of a programme to stamp out violence against women and girls in Nairobi slums. "If this man would have assaulted this kid, he would have thrown her inside the river."
Omondi teaches a programme called 'Your Moment of Truth', run by the charity Ujamaa Africa which encourages adolescent boys to stand up against violence towards women."
Read article by Katy Migiro from Thomson Reuters Foundation.