Hundreds of anti-extradition bill protesters gathered outside the Beijing liaison office in Hong Kong on July 21. Some pelted eggs, while others spray-painted the front of the building. Riot police later moved in to clear them.  This followed the third major protest against the now-suspended extradition bill, which organisers say drew 430,000 people. Many marched past the march’s designated endpoint and headed toward government headquarters, police headquarters and the liaison office to…