Gerald Posner
Gerald Posner is an investigative journalist and author best known for his 1993 book 'Case Closed,' which concluded that Lee Harvey Oswald acted alone in assassinating President Kennedy.
© 2026 Improve the News Foundation.
All rights reserved.
Version 7.18.2
Gerald Posner is an investigative journalist and author best known for his 1993 book 'Case Closed,' which concluded that Lee Harvey Oswald acted alone in assassinating President Kennedy.