Investigated the 1976 Tehran UFO incident on behalf of the U.S. Air Force.
Mckenzie joined the U.S. Navy near the end of World War II, at the age of 17. After World War II he served in the U.S. Air Force, where we distinguished himself as a decorated fighter pilot in both the Korean and Vietnam wars. He later learned Farsi and became a military affairs officer, advising the U.S. embassies in Iran and Afghanistan. He was serving as Defense Attache for the U.S. embassy in Tehran, Iran during the famous 1976 Tehran UFO incident and was asked to report on the incident for top military brass.