By News staffNEW YORK (AP) -- The mother of a Connecticut woman who was shot to death by police after trying to breach a barrier at the White House said her daughter was suffering from post-partum depression. Authorities said the woman set off a high-speed car chase that put the Capitol on lockdown Thursday and caused a fresh panic in a city where a gunman killed 12 people two weeks ago. Two law enforcement officials identified the driver as 34-year-old Miriam Carey, of Stamford, Conn.