Evan Hill, a member of the New York Times Visual Investigations team, was lead reporter on an investigation into the Russian bombing of Syrian civilians that won a Pulitzer Prize for international reporting on May 4 and a George Polk Award for international reporting on February 19. The Pulitzer jury recognized the Visual Investigations team for two stories that proved, for the first time, that the Russian Air Force was responsible for a series of attacks on hospitals and other civilian sites in opposition-held Syria. The investigation has been cited during a United Nations Security Council meeting on Syria and during a congressional hearing on protecting civilians during armed conflict. Hill and his team relied on traditional reporting, contacting dozens of sources, and new open source techniques, such as geolocation and metadata, to carry out their investigation.