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Devastated by his wife's departure and later death, Keeler died in 1949 in Door County, Wisconsin, at the age of 45, after suffering a stroke brought on by stress, alcohol, and cigarettes. [9] His contributions to the development of the polygraph are featured in the documentary film The Lie Detector which first aired on American Experience on ...
American inventor Leonarde Keeler testing his improved polygraph on Arthur Koehler, a former witness for the prosecution at the 1935 trial of Richard Hauptmann. A polygraph, often incorrectly referred to as a lie detector test, [1] [2] [3] is a pseudoscientific [4] [5] [6] device or procedure that measures and records several physiological indicators such as blood pressure, pulse, respiration ...
John Augustus Larson (11 December 1892 – 1 October 1965) was a police officer and forensic psychiatrist and became famous for his invention of the modern polygraph device used in forensic investigations. [1] He was the first American police officer with an academic doctorate and to use the polygraph in criminal investigations.
Post-mortem photograph of Emperor Frederick III of Germany, 1888. Post-mortem photograph of Brazil's deposed emperor Pedro II, taken by Nadar, 1891.. The invention of the daguerreotype in 1839 made portraiture commonplace, as many of those who were unable to afford the commission of a painted portrait could afford to sit for a photography session.
Sarah Elizabeth Marston (née Holloway; February 20, 1893 – March 27, 1993) [1] was an American attorney and psychologist.She is credited, with her husband William Moulton Marston, with the development of the systolic blood pressure measurement used to detect deception; the predecessor to the polygraph.
In 1990, the investigation into Smith's death became an FBI matter, as Putnam was under suspicion for her disappearance. Putnam underwent a polygraph exam, which he failed. He subsequently confessed, pleaded guilty to accidentally strangling Smith, [ 4 ] [ 2 ] and told authorities where to find her body. [ 3 ]
Grover Cleveland "Cleve" Backster Jr. (February 27, 1924 – June 24, 2013) was an interrogation specialist for the Central Intelligence Agency (CIA), best known for his experiments with plants using a polygraph instrument in the 1960s which led to his theory of primary perception where he claimed that plants feel pain and have extrasensory perception (ESP), which was widely reported in the media.
Michael LeMoyne Kennedy was born on February 27, 1958, in Washington, D.C. He was named LeMoyne for Kirk LeMoyne Billings, the preparatory school roommate of his paternal uncle, John F. Kennedy, and a Kennedy family friend. [1]