Mohamed Bachir Arab

Arrested by the Syrian authorities, on 2 November 2011, in AleppoMohammad Arab
His fate and whereabouts remain unknown

Dr. Mohamed Bachir Arab, a doctor from Aleppo, had gone into hiding shortly after he learned that his name appeared on a list of persons wanted by the Syrian security services. He was involved in the organization of peaceful demonstrations in his hometown.
On 2 November 2011, security forces detained Dr. Mohamed Bachir Arab together with a friend who also participated in demonstrations. Apart from unconfirmed reports by released detainees up until the end of July 2012, there has been no news about his fate or whereabouts.

One of the former detainees indicated that Dr. Mohamed Bachir Arab started a hunger strike on 1 July, while being detained by Air Force Intelligence in Damascus, to demand his release or to be tried, further increasing the concern for his wellbeing.
Security forces moved him to a detention facility in Qaboun, a town on the outskirts of Damascus, and in late July, moved him again. His current whereabouts are unknown.

Source: Human Rights Watch