Woman Shot on Capitol Hill Thought Barack Obama Was Stalking Her

Mother says she was suffering from post-partem depression

More information is coming out today about the Stamford woman identified as the driver of a car that rammed a barricade outside the White House before leading police on a chase to the U.S. Capitol yesterday.

Law enforcement sources told NBC News that they found indications that Miriam Carey, 34, believed she was being stalked by President Barack Obama.

Carey, who was shot and killed by Capitol police outside the U.S. Capitol, is well known to local authorities in Connecticut and suffers from mental health issues,  NBC News' Peter Williams reports.