Tributes are flowing in on for Olympic marathon champion Sammy Wanjiru who died on Monday from head injuries at the age of 24 after falling from the second floor of his home in Kenya's Rift Valley.
Dave Bedford, race director for the London marathon, a race Wanjiru won in 2009, says a tribute to the athlete he describes as the greatest marathon runner that he's ever seen in the world is being planned.
Wanjiru's agent Federico Rosa spoke to the athlete at the weekend and is convinced he didn't take his own life.
Wanjiru made history at the 2008 Beijing Olympics when his winning time of two hours six minutes and 32 seconds destroyed the 24-year-old Olympic record of 2:09:21 set in 1984 by Carlos Lopes of Portugal. It gave Kenya its first Olympic marathon gold.
After Beijing, Wanjiru won the London marathon in 2009 and Chicago in 2009 and 2010.
Fellow athletes Haile Gebrselassie and Kenenisa Bekele have expressed their shock.
