Ronald Lee "Ron" Ridenhour
Ronald Ridenhour.jpg
Ridenhour in November 1969
Born(1946-04-06)April 6, 1946
DiedMay 10, 1998(1998-05-10) (aged 52)
Alma materPhoenix Junior College
Claremont Men's College
Occupationinvestigative journalist
Known forExposing the My Lai Massacre
External image
image icon Ron Ridenhour's press card. Displayed at The Ridenhour Prizes: About Ron.

Ronald Lee Ridenhour (April 6, 1946 – May 10, 1998) was an American known for having played a central role in 1969 in spurring the federal investigation of the 1968 Mỹ Lai massacre in Vietnam.[1] When he first learned of events there, he was serving in the United States 11th Infantry Brigade in Vietnam. He gathered evidence and interviewed people before the end of his tour. After returning to the US in 1969, he wrote to President Nixon, members of his cabinet and two dozen Congressmen recounting what he had learned. A full-scale Department of Defense investigation eventually took place.

Ridenhour became an award-winning investigative journalist, working on a range of topics. The Ridenhour Prizes were established in his honor.


Ridenhour was born in Oakland, California, and was raised in Phoenix, Arizona. He entered the US Army during the Vietnam War, serving as a helicopter gunner.

While serving in Vietnam, Ridenhour heard of the Mỹ Lai massacre from friends in the service. While still on active duty, he gathered eyewitness and participant accounts from other soldiers.

After his return to the United States in 1969, he wrote a letter detailing the evidence, which he sent to President Richard Nixon, five senior officials at the State Department and the Pentagon, and 24 members of Congress.[2]

The Department of Defense conducted a lengthy probe. Some twenty-six soldiers were charged with criminal offenses. Former Lieutenant William Calley, Jr. was the only one convicted, for killing 22 villagers.

Postwar life

Ridenhour went to college after his service and graduated in 1972 from Claremont Men's College. He became an investigative journalist, reporting on a range of government scandals and other issues.

Years later, Ridenhour published an account of learning about the My Lai massacre in his article, "Jesus Was a Gook," published in Nobody Gets Off the Bus: The Viet Nam Generation Big Book (1994).[3]

He died at age 52 of a heart attack in 1998 in Metairie, Louisiana. He had been playing handball.[4]


(Note: According to Jonathan Glover's book, Humanity: A Moral History of the Twentieth Century (2001), Ridenhour took part in the Princeton University version of the Milgram experiment. This claim was investigated and it was found that the Ron Ridenhour who took part in the Milgram experiment was a different person than Ronald Lee Ridenhour.[7])


  1. ^ Biographical information from Ronald Ridenhour's obituaries: John H. Cushman, Jr., "Ronald Ridenhour, 52, Veteran Who Reported Mỹ Lai Massacre", The New York Times, May 11, 1998.; and The Times-Picayune, New Orleans, LA, May 11, 1998 and May 18, 1998, reproduced in Louisiana US GenWeb Archives
  2. ^ Ridenhour's 1969 letter Archived 2011-02-09 at the Wayback Machine to Congress and Pentagon officials
  3. ^ Dan Duffy and Kalí Tal (eds.), Nobody Gets Off the Bus: The Viet Nam Generation Big Book, Woodbridge, CT: Viet Nam Generation, Inc., pp. 138–142, 1994. ISBN 0-9628524-8-1
  4. ^ 1968 My Lai Massacre on C-SPAN. March 15, 2018. Retrieved on September 3, 2020.
  5. ^ "Historical Winners List". UCLA Anderson School of Management. Retrieved January 31, 2019.
  6. ^ Description from official website of The Ridenhour Prizes. Retrieved on September 3, 2020.
  7. ^ Bear, Gordon. "Mistake about Milgram and My Lai - Retracting a Meme". SPSP discuss Group. Retrieved 20 February 2013.((cite web)): CS1 maint: url-status (link)