Lieutenant General Timothy J. Maude was the highest ranking military officer killed in the September 11, 2001 attacks and the most senior U.S. army officer killed by enemy action since Simon B. Buckner in 1945. He was serving as the U.S. Army's Deputy Chief of Staff for Personnel and was at a meeting when American Airlines Flight 77 crashed into the west side of The Pentagon. Wikipedia
Lieutenant General Timothy J. Maude, a soldier and leader who was serving as the Army's Deputy Chief of Staff for Personnel, was killed in the attack on the Pentagon the morning of September 11, 2001. www.maudefoundation.org/aboutTim.html
On 20 September 2001, the Defense Department confirmed that Lieutenant General Timothy J. Maude was among those killed in the terrorist attack on the Pentagon. www.arlingtoncemetery.net/tjmaude.htm
The definitive Wikipedia entry for Timothy Maude. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Timothy_Maude