Continuity mistake: Bassam's hands alternate between being on Fauzi's shoulders to wrapped around his throat over several cuts.
A Rock and A Hard Place - S3-E5
Continuity mistake: A notebook on Leila's desk is upright when viewed over her left shoulder, but flopped over when viewed over Ahmed's right shoulder.
Bedfellows - S3-E7
Continuity mistake: Leila's head scarf alternates between shots from being on her head to off as she addresses the people at the round table.
Two Graves - S3-E10
Continuity mistake: Before getting on the helicopter, Sophia and Leila are abreast of each other at the chopper's door, but the next instant cut shows Leila getting ready to board first, and Sophia behind her.
Answer: Nusrat was killed because she knew the secret of Jamal's treatment of her, the pregnancy that was not Ahmed's, but Jamal's, etc. She was a liability to the al-Fayeed family who could be used by their enemies to erode their power. Also, it was Ahmed who killed Jamal, not Nusrat.
Scott215