Unflappable American teenager Virginia Thrasher won the first gold medal of the Rio 2016 Olympic Games on Saturday, holding her nerve against two Chinese Olympic champions to clinch the women's 10m air rifle event. The 19-year-old U.S. college champion bumpped out China's Du Li, gold in Athens in 2004,. and Yi Siling, also of China. Competing in her first Olympics, Thrasher, as the first champion of the 2016 Games, said the achievement was beyond her wildest dreams. The youngest of the eight finalists by several years, Thrasher established an early lead after battling with the Russian shooter Daria Vdovina, who...