Rabia was killed in North Waziristan, Pakistan, in December of that year.

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They added that the convoy had been headed from Rabia to the al-Waleed border crossing in Iraq's Anbar province when it was attacked.

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Campbell and the gunman man broke into the house while Ausman Khan was out but his father, Mohammed, was in bed and his sister, Rabia, was in her bedroom.

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