 Cornille is a longtime U.N. development expert who briefly served as prime minister of Haiti in 2011 and 2012. Just over a month ago, he moved back to take on the position again. His mandate is to lift the country out of violence and pave the way for elections in less than two years. He says he believes it's possible to take the capital back from gangs because of the resilience and commitment of the Haitian people.