Kenyan athletes Eunice Sum and Julius Yego led the tributes to compatriot Agnes Tirop who was found stabbed to death at her home in the town of Iten on Wednesday. Tirop, 25, finished fourth in the 5,000m at this year's Tokyo Olympics and won bronze medals at the 2017 and 2019 World Championships in the 10,000m. Yego, world javelin champion …