On Feb. 22, 1974, Samuel Byck, carrying a briefcase bomb and a .22 pistol, entered Baltimore Washington Intl Airport. At a Delta Airline check-in desk he pulled his gun and shot dead an airport police officer, ran down the jet-way and boarded a DC-9 that was ready for departure to Atlanta. He ordered the pilots to take off, but they were not fast enough, they told him that wheel blocks had to be removed first. So he shot them too, killing the co-pilot. He then grabbed a female passenger and ordered...