By bus, by bike and by foot, they come to the aid of abused and displaced women in Colombia. And they've just won a $100,000 humanitarian prize for their efforts.
When Rodrigo Guerrero took office, he was shocked by the murder rate. It seemed logical to blame the drug cartels. But his epidemiologist's eye led him to a different culprit.
The Colombian city was the world's murder capital in the 1990s, but it managed to turn its fortunes around. Homicides were cut by 80 percent and made big gains on a number of fronts. But the city still faces many challenges in a region plagued by violence.
Colombia's FARC rebels are engaged in peace talks with the government, but the group is also stepping up recruitment of child soldiers. Thousands of children may have become rebels in recent years, and efforts are underway to rehabilitate some of them.