On 21st December 1988, a bomb exploded on board Pan Am Flight 103 above Lockerbie. Two hundred and seventy people on the plane and on the ground were killed.
To mark the 25th anniversary of the deadliest act of terrorism in British history, Glenn Campbell explores the profound impact this enduring tragedy has had on some victims' relatives on both sides of the Atlantic, and on witnesses, emergency responders, and investigators.
