Jenifer Lizano lives in one of the five most violent places in Costa Rica, the neighborhood of León XIII in the northern San José canton of Tibás. "Guns are used here on a daily basis and there are shootings at any time of the day," she said. In the first 10 months of 2013, 15 people have been murdered in the urban neighborhood. Some victims are children, including Lizano's 14-year-old nephew, who was killed by a stray bullet two years ago. Since then, Lizano... (GunPolicy.org)