A shocking video shows car after car slamming into each other in a massive chain-reaction pile-up. In total, 47 vehicles were involved in the incident during winter weather in Kansas City, Missouri, and the aftermath looked like a war zone. A 74-year-old woman was killed in the accident and her husband was critically injured. Jamon Weaver, who shot the video, was traveling with girlfriend Taneka Evans when vehicles started colliding. "The cars kept slamming, slamming, slamming," Weaver said.