Meet Chen Si. Since 2003, he spends every weekend on the Nanjing Yangtze River Bridge, a notorious spot from which to commit suicide. Chen patrols the bridge, looking for people who might be contemplating suicide. He has stopped more than 400 people from

Meet Chen Si. Since 2003, he spends every weekend on the Nanjing Yangtze River Bridge, a notorious spot from which to commit suicide. Chen patrols the bridge, looking for people who might be contemplating suicide. He has stopped more than 400 people from