Neide dos Santos lost her husband and her teenage son to shootings in Sao Paulo's toughest neighbourhood. Her husband was shot by the police. Her son was killed by a 14-year-old gunman.
In rebuilding her life she discovered long distance running. It gave her time to reflect on her loss but it also inspired others in her favela to follow in her footsteps.
Before long she was taking other mothers running. "They came to me because they wanted to do sport too," she says. Soon children joined and now she helps them train for marathons.