After losing his entire family, a 90-year-old from central China took to the road on a decades-long cycling odyssey in search of solace. The sprightly Zhang Zhongyi, from Kaifeng in Henan province, remains sharp-witted, articulate and quick to smile. His story gained nationwide attention after Bai Xiaobai, a woman who encountered him in Putian, southeastern China’s Fujian province, stopped to help push his tricycle. As they spoke, Zhang recounted the tragedy that had reshaped his life. In the...