Video: Washington shooting: woman killed after Capitol car chase Passers by ducked for cover on Thursday as shots rang out during a police operation to halt the woman, who was driving with a one-year-old girl in her black sports car. Washington police chief Cathy Lanier told reporters the suspect, described by police as a "black adult female," had been pronounced dead, but refused to discuss the driver's possible motive while the investigation was ongoing. "The child is approximately a year old, and is in good condition, and in protective custody," she said, adding that officers had fired shots at two locations as they tried to halt the vehicle. Footage of the incident showed the woman's car striking a barrier at the outer perimeter of the White House security cordon, before turning around and speeding off, only to hit another barrier as police surrounded the vehicle and fired shots to halt it. Television station ABC has identified the woman as Miriam Carey, a 34-year-old dental hygienist who suffered from post-natal depression after the birth of her daughter. The incident was the second major security breach in the US capitol in less than three weeks. On September 16, gunman Aaron Alexis stormed the nearby Navy Yard and killed 12 people.