FILE PHOTO: Floral tributes left at the Memorial Garden in Dryfesdale Cemetery, are seen on the morning of the 30th anniversary of the bombing of Pan Am flight 103 which exploded over the Scottish town on December 21, 1988, killing 259 passengers and crew and 11 residents on the ground, in Lockerbie, Scotland, Britain, December 21, 2018. Jane Barlow/Pool via REUTERS/File Photo