Li Jingzhi spent more than three decades searching for her son, who went missing as a toddler in central China’s Shaanxi province. She travelled to nearly every Chinese province, following every lead that never panned out until the spring of 2020, when DNA technology confirmed that a man in Chengdu was Li's missing son, Jiajia. After being reunited with her son in a nationally televised event, Li became a high-profile advocate for helping families in China find their missing children…