On 28 July 2018, Ron Leighton posted on 'Facebook': "There is reason to believe the downing of Pan Am 103 in 1988 was not a terrorist act by Libyans or any other usual suspect, but instead a targeted killing of a UN official, obviously with lots of collateral damage and victims. Patrick Haseldine believes an investigation should consider that idea." (https://www.facebook.com/ron.leighton.77/posts/1776351769085605)