Everexpanding
It seems that there were other witnesses who also said that hands were bound
I would take more notice of the doctor who carried out the post-mortem examination - he clearly didn't see the binding on the bodies claimed by Dr Ahmed al-Farra. Both doctors work at the same hospital.
I do not have enough knowledge to interpret one photo
You don't need expert knowledge to examine the photo. The photograph published by Sky News is self-evident.
Now we are supposed to believe that Dr Ahmed al-Farra, a paediatric doctor, has examined another set of adult bodies, six months later, claiming that they too were bound. Where is the 'photographic evidence' this time?