I found this picture at the Beirut Memorial Online, and here you can find a list of the fallen from this terrible day. Go look, and think about the lives cut short, as represented by every name there.
Aerial view of the headquarters of Battalion Landing Team 1st Bn., 8th Marines, the ground combat element of the 24th Marine Amphibious Unit, in Beirut, Lebanon where 220 Marines, 18 Sailors, and three soldiers were killed when an explosive-laden truck slammed into the building on Oct. 23, 1983, completely destroying the structure.
Source: U.S. State Department.
(picture: courtesy of University of Maine)