Palestinian terrorists carried out the stoning murder of Israeli teens Koby Mandell and Yosef Ishran on May 8, 2001. The boys were stoned to death, and "their heads had been smashed in by rocks". The Koby Mandell Foundation and comedy show The mission of the Koby Mandell Foundation, set up by his parents Seth and Sherri Mandell, is to "work to bridge the isolation that bereaved children and adults are struck with after the loss of a loved one."<ref nameJPost3/><ref name"The Koby Mandell Foundation"/> Leonard A. Cole, in his book Terror: how Israel has coped and what America can learn, writes that Koby's parents are determined "to take the cruelty of Koby's murder and transform it into kindness."<ref name=Cole/> Koby's parents also organized comedy shows to commemorate their son's memory. Koby loved jokes and had a great sense of humor.<ref nameJPost3/><ref name"The Koby Mandell Foundation"/>