Hong Kong is mourning the loss of its first chief executive, Tung Chee-hwa, in a weekend vigil, with tributes pouring in from political and business heavyweights as well as members of the public. Tung, who died at the age of 89 on September 8, led Hong Kong through ups and downs – the Asian financial crisis in 1997, the Sars outbreak in 2003 and a V-shaped rebound in the economy that followed. Saturday’s rituals, held at Hong Kong Funeral Home in North Point, will be followed by a state funeral...