 Overseas tonight, the seismic shift in British politics. The new prime minister riding a Labour Party wave into office. Conservative lawmakers swept from power in a historic landslide. James Longman in London. Here in New York, new images of a deadly crash on the 4th of July. Three people killed by a suspected drunk driver. Video appearing to show a truck speeding through an intersection. Moments before slamming into a crowd of people celebrating the holiday in a park.