Video shows 83-year-old performing CPR on 96-year-old in China

A video showing an 83-year-old man performing CPR on a 96-year-old man suffering a heart attack in China's Zhejiang has surfaced online. A relative of the patient came to thank the man, who is a retired doctor, at his home. Reacting to the video, a Twitter user wrote, "Need more people like him to make the world a better place."