Omar's was definitely staged, she lied about knowing the attacker, supposedly didn't know what was tossed on her, but didn't clean it off, change clothes, or stop hugging the people around her.
We can see on the video she nods at him before he gets up. For someone "raised in war" she was pretty calm before, during, and after the alleged attack. They've got the guy facing 10 years, but who'll bet the mortgage nothing comes of it?