The woman who led authorities on a chase from the White House to the Capitol before she was killed by police may have thought that President Barack Obama was stalking her, law enforcement sources told NBC News.
The sources said that the woman, Miriam Carey, had a history of mental health problems.
The chase, on Thursday afternoon, stirred panic in the capital and briefly stopped the mechanisms of government. It happened two weeks after a man shot 12 people to death at the Washington Navy Yard.
Members of the House and Senate, in a standoff over the government shutdown, were ordered to stay in place. One lawmaker was cut off mid-sentence during a speech. A swarm of police startled tourists who were taking in Washington on a summery day.
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