The Committee to Protect Journalist (CPJ) maintains a database listing journalists killed worldwide since 1992. Deaths are classified as "motive confirmed" if there is reasonable certainty the journalist was murdered in direct reprisal for his or her work, or killed in crossfire during combat, or killed while carrying out a dangerous assignment. If the motive is unclear, the case is labeled "unconfirmed" and investigation continues.
CPJ is an "an independent, nonprofit organization that promotes press freedom worldwide and defends the right of journalists to report the news without fear of reprisal."