Malachy Browne | Las Vegas mass shooting, Russian bombs on Syrian hospitals and a body in Gaza

Pulitzer Prize winning Malachy Browne from The New York Times visual investigations team talks about the his journey from engineering into journalism, how he and his team pioneered a new form of explanatory and accountability journalism at The Times, the Las Vegas mass shooting, Syrian hospitals being bombed by Russian pilots and the killing of a young Palestinian medic along the Gaza-Israel border.