Schripps Howard News Service has conducted the most complete accounting ever made of homicide victims in the United States. Aggressive use of state and local Freedom of Information laws allowed the wire service to assemble a database of 525,742 homicides, including records of 15,322 killings never reported to the FBI. The "Murder Mysteries" project calculated the homicide clearance rate for every police department in the U.S., prompting four departments to promise reforms. Scripps also developed an algorithm that identified 161 suspicious clusters of unsolved homicides involving women of similar age killed through similar means. Authorities in Gary, Ind., and Youngstown, Ohio, Launched new investigations into possible serial murder in their communities as a result of this project.