Issa Khatib disappeared since December 2016 arrest by Syrian government forces
Timeline
March 18, 2019: MENA Rights Group requests intervention of UN Working Group on Enforced or Involuntary Disappearances.
August 2017 and November 2018: Family enquiries about his fate and whereabouts with authorities in Damascus.
December 13, 2016: Arrested in Aleppo at a checkpoint controlled by members of the State Security.