Capitol shooting suspect, Miriam Carey, suffered post-partum depression

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WASHINGTON, D.C. – We are learning more about the woman killed at the U.S. Capitol Thursday as she tried to drive through barricades.

Her mother told ABC News that Miriam Carey, 34, suffered from post-partum depression.

And, investigators searching her Stamford, Conn., condo found what appear to be medications to treat schizophrenia and other mental conditions.

Capitol police opened fire on her car after she led them on a chase that resulted in her death and injuries to two officers. It was only after the chase ended that police discovered she had her one-year-old child with her in the car, but no weapon.

A Connecticut dentist said she was working for him in January 2012 when she fell and hurt herself, missing nearly a month of work. He said she was pregnant when she came back, but he had to fire her in august after patients complained she was too rough.

Her boyfriend apparently called police last December, saying she was acting strangely, claiming President Obama was spying on her.

And another strange part to this story: one of her sisters apparently is New York City police officer.

But the most tragic part is that no one may ever know for sure what happened.