A group of boys on bicycles gather on a dusty side-street in eastern Saudi Arabia.
Foot on pedal, 10-year-old Murtaja Qureiris is about to lead the group of around 30 children. In video footage obtained by CNN, he is wearing rolled up denim jeans and black flip-flops on his feet, and grinning at the camera recording the event. It may look like a regular bike ride, but the group is staging a protest.
Now, at the age of 18, Qureiris is facing the death penalty after being held for almost four years in pre-trial detention
