Sari Horwitz covers the Justice Department for The Washington Post, where she has been a reporter for 33 years. Horwitz has been awarded the Pulitzer Prize three times. In 2002, she shared the Pulitzer for investigative reporting for a series exposing the District of Columbia's role in the neglect and deaths of 229 children placed in protective care. The series prompted an overhaul of the child welfare system and a new wing of D.C. Superior Court for children and families. Horwitz also co-wrote an investigation of D.C. police shootings that revealed that D.C. police officers shot and killed more people per resident in the 1990s than any other large American city police force. The series won the 1999 Pulitzer for public service and the 1999 Selden Ring Award for investigative reporting. It led to a Justice Department investigation of all D.C. police shootings in the 1990s and new training of all officers. In 2008, she was part of a team awarded the Pulitzer for breaking news coverage of the shooting rampage at Virginia Tech. Her reporting has also won numerous other awards. At The Washington Post, Horwitz has reported on crime, police, legal issues, education and social services for The Post's Investigative unit and the local and national staffs. She previously worked at Congressional Quarterly.