I'm not sure of the answer but, put together, this assortment of headings seems to devalue Carla Powell as a person - this is a woman who has been attacked by robbers in her own home and she's described as somebody's wife, somebody's friend. Only two use her name, and one of them gets it wrong.
She is Lady Powell, a title she has on account of her husband being a peer. She would have to be the daughter of a Duke or a Marquess to be Lady Carla.
Even her name relates to somebody else. That could be said of any woman who adopts her husband's surname, but this is a step beyond that: the honorific has nothing to do with her own abilities and is granted her because of her husband's achievements - or, if you are cynical, connections.
The #yesallwomen hashtag that was trending after Elliot Rodger's murderous assault on women at the University of California, Santa Barbara, was used opportunistically by some and to make valid points by others. But one thought came through loud and clear. We should all commit it to our brains: