Leonard William Hatton Jr. (August 17, 1956 – September 11, 2001)[1] was an American special agent of the Federal Bureau of Investigation (FBI).

Shortly after, while in the United States Marine Corps he completed studies in forensic science at National University in San Diego.

[4][5] On the morning of September 11, 2001, Hatton was on his way to work when he saw the North Tower of the World Trade Center on fire after being struck by American Airlines Flight 11 at 8:46 a.m.[4] According to eyewitness accounts, he turned back to help.

On his own initiative, he responded directly to the North Tower, where he assumed a position on the roof of the Marriott World Trade Center.

[6][4] Because of falling debris, he moved from the roof and joined with New York City Fire Department (FDNY) firefighters in evacuating the civilians trapped within the South Tower.