Islamic State claimed responsibility for Masood’s attack, although it was unclear what links – if any – he had with the militant group.
BIRMINGHAM, England – Before he killed at least four people in Britain’s deadliest attack since the 2005 London bombings, Khalid Masood was considered by intelligence officers to be a criminal who posed little serious threat.
A British-born Muslim convert, Masood had shown up on the periphery of previous terrorism investigations that brought him to the attention of Britain’s MI5 spy agency.
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