“The family reportedly adheres to Shariah law.”
I don’t believe it. She’s still has her head and he’s got nothing.
He may adhere to Shari’ah law, but clearly she does not.
He has been greatly and public dishonored, therefore that calls for appropriate response, an honor killing. If she were adhering to Shari’ah, she would come outside and submit to being killed on the front lawn.
I do not see her doing that anytime soon.