Ten years ago, Koby Mandell and his friend Yosef Ishran went hiking in the West Bank near their homes in Tekoa. The hike came to a tragic end when the two teenagers were stoned to death and their bodies were found in a nearby cave.A decade later, Mandell’s parents led a five day hike that has raised $16,000 for the Koby Mandell foundation. Ten people participated in the Kilometers for Koby hike, and each person was asked to raise at least $2,500.