News Cops For Kids with Cancer by Journal Staff • May 3, 2019 • 0 Comments Revere Police Officer David Caramanica, Yohana Chavarria and her 6-year-old son, Christopher Chavarria, Cops for Kids With Cancer President Helena Rafferty, and Revere Police Chief James Guido. The organization made a substantial donation to help defray the family’s medical expenses as young Christopher battles his illness. Christopher Chavarria hugging and thanking David Caramanica.