China’s He Jie has been disqualified as winner of the Beijing half marathon along with three African runners by race organizers after an investigation into the controversial end of Sunday’s race. Organizers said on Friday video footage showed Kenyans Robert Keter and Willy Mnangat, and Dejene Bikila of Ethiopia, had deliberately slowed down shortly before the finish line and waved He through to win. The videos went viral with online users suggesting the race was fixed. Organizers said that four runners had been hired as pacemakers and not elite runners by the main race sponsor. They were neith…