KELVIN Kiptum's devastated wife had been looking forward to watching him try to become a marathon legend as the first athlete in under 2 hours. Now she is wondering how to tell their two children that their father was killed in a car accident. Sobbing next to her in the village where they all lived, Kiptum's father is desolate that his only child has died, and with him the hopes for a better life for the family. Police said the athlete lost control of the vehicle he was driving and veered off the road into a ditch, travelling for about 60 metres…