Fate of Syrians held by IS unknown, year after caliphate falls When the Islamic State group lost its Syrian bastion Raqa last year, family members of missing people hoped to finally uncover what happened to their relatives, who vanished years ago in the jihadists' prisons. But with many IS jails destroyed in fighting and no centralised body investigating the issue, Syrians have spent a year desperately searching with no answers. IMAGES AND SOUNDBITES