For more: https://www.cgtn.com/video Another mass shooting in a U.S. school left 21 deaths, including 19 children. Last week, 18-year-old Salvador Ramos shocked the world when he opened fire in an elementary school in the city of Uvalde, Texas and live streamed his atrocities on social media. He was killed by police on the spot. So far this year, over 20 mass shootings have been recorded in schools and a total of 7,700 people have died from gun violence in the U.S. Yet, there's no sign the trend is bucking. How deep does the root cause go? How on earth can the issue be remedied? Guests: Martin Jacques, former senior fellow, Cambridge University Edward Lehman, managing director of Lehman, Lee & Xu LLP Subscribe to us on YouTube: https://goo.gl/lP12gA Download our APP on Apple Store (iOS): https://itunes.apple.com/us/app/cctvn... Download our APP on Google Play (Android): https://play.google.com/store/apps/de...