Lockerbie Remembered 30 Years On
On the 21st of December 1988, Pan Am flight 103 - en route from Heathrow to New York - blew up over the Borders town of Lockerbie.
All 259 people on board were killed, along with 11 people on the ground.
It remains the worst act of terrorism on UK soil.
Corrie Martin has this special report for Heart.