Atef Najib, the ex-Syrian security official widely seen as the man who oversaw a regime of murder, torture and forced disappearances during Syria's civil war, has been sentenced to

Atef Najib, the ex-Syrian security official widely seen as the man who oversaw a regime of murder, torture and forced disappearances during Syria's civil war, has been sentenced to death. Here's what you need to know about his court trial and verdict