The shooting of MP Jo Cox has caused understandable shock waves here, because it is so unusual.
In the US Senate, a 15-hour filibuster session trying to force some debate on (very limited) gun control looks as if it might have been successful. Vox news points out that during that session, 48 people were injured or killed from gunshots.
Here, also from Vox, is an excellent summary of the international statistics around gun ownership.
Thanks to Markus Kuhn for the video link.