It isn't, no need to express doubt.
> as none from
> Great Britain are listed, and believe there have been several of such in the
> Mother Country.
Dunblane being perhaps the most infamous, there have been others. There have also been incidents with attackers wielding knives in Old Blighty, the Daily Mail suggests that as of about 8 months ago, there was a knife attack every 4 minutes: http://www.dailymail.co.uk/news/article-1036154/A-knife-attack-4-minutes-130-000-year--ministers-insist-crime-rates-falling.html
When all the guns are beaten into plowshares, muggings will be conducted with plowshares.
Percy