Kazakhstan's Olympic medalist skater Denis Ten stabbed to death

File photo taken on Feb. 22, 2014 shows Olympic bronze medallist Denis Ten of Kazakhstan performs during the Figure Skating Gala Exhibition at the 2014 Sochi Winter Olympic Games in Sochi, Russia. Olympic figure skating medalist Denis Ten was stabbed to death on July 19, 2018 in his native Kazakhstan. (Xinhua/Wang Lili)