Bill and Gayle Newman fell on the grass sheltering their children, north of Elm Street seconds after the assassination of US President John F Kennedy in Dallas, Texas, fearing that they were in the line of fire. Photographer Frank Cancellare urged them to to stay prone while he took this photo less than a minute later. November 22, 1963

Bill and Gayle Newman fell on the grass sheltering their children, north of Elm Street seconds after the assassination of US President John F Kennedy in Dallas, Texas, fearing that they were in the line of fire. Photographer Frank Cancellare urged them to to stay prone while he took this photo less than a minute later. November 22, 1963