This powerful clip is from Ronald Ridenhour’s testimony before the Peers Inquiry. His letter was directly responsible for triggering investigations by the army and then by politicians too. The most comprehensive of those investigations was carried out for General Westmoreland by Lieutenant General William (Ray) Peers from November 1969 to March 1970 and became known as the Peers Inquiry.
Ronald Ridenhour and Hugh Thompson rarely spoke together in public. This link is to the transcript of the statements they made during a conference on My Lai that was held at Tulane University, New Orleans, Louisiana, USA in December 1994. These first-hand accounts are valuable. When they both gave testimony to the Peers Inquiry in 1969/70, they knew nothing about the role to other had played at the time of the massacre. In 1994, with better understanding of the bigger picture, their statements make interesting reading.