Police officers killed by guns
In a year-long investigation, Washington Post reporter Cheryl W. Thompson examined 511 killings of police officers by guns over the past decade.
Click a phrase to see those incidents on the map and in the table below
SOURCES: Washington Post research; state and local police agencies; the FBI and Criminal Justice Information Services; federal, state and local prosecutors; court records; police records; the Officer Down Memorial Page; and the Violence Policy Center.
GRAPHIC: Wilson Andrews, Mary Kate Cannistra, Jennifer Jenkins, Todd Lindeman and Cheryl W. Thompson / The Washington Post - November 22, 2010.