Thirty years ago, pieces of Pan Am Flight 103 — a Boeing 747-121 that was carrying 243 passengers and 16 crew — rained down on the village of Lockerbie, turning the picturesque Scottish town into a fiery scene of horror. The jumbo jet had broken apart in midair after a bomb in a suitcase in its hold detonated at 31,000 feet, sending flaming wreckage plummeting onto houses below. It's estimated that only two minutes elapsed between the device detonating and the debris slamming into Lockerbie . Everyone on the plane died, as did 11 people on the ground. The intense investigation that followed concluded that the improvised explosive device that brought the flight down on Dec. 21, 1988 had been built and placed aboard the aircraft by Libyan intelligence agents and provided evidence that the attack had been ordered by Libya.