 Knapp became known nationally in the late 1980s by reporting the story of Bob Lazar, who claimed to have worked on extraterrestrial UFOs at the secretive Area 51.Due in part to Knapp's discovery of evidence corroborating some of Lazar's claims, Knapp's stories on Lazar were taken more seriously than typical UFO fare.In 1990, Knapp's stories on Lazar earned an "Individual Achievement by a Journalist" award from the United Press International.