 Some 4000 Muslims from Višegrad were disappeared.Lelek, a policeman, was a member of the group led by the war criminals Milan Lukić and Mitar Vasiljević, both found guilty by the ICTY at The Hague of some of the most horrific crimes committed during the Bosnian War.Lelek was found guilty of taking part in persecution of the Bosniak (Bosnian Muslim) population, grave freedom deprivations, grave sexual assaults and forcible transfer of the population, in a campaign during which Bosnian Muslim men were abducted from their homes and places of work, detained and killed while women were taken to a camp where they were tortured and raped.