The pair were discussing the ban on handguns in the UK, which was introduced following the killing of 16 children aged five and six, and their teacher, by Thomas Hamilton at Dunblane Primary School on March 13, 1996.
Article source: https://www.huffingtonpost.co.uk/entry/rupert-lowe-dunblane-massacre_uk_6a4f9631e4b0f386cc42eae5