First you must remember. That it is a total different culture regarding guns in Europa than the USA. At lest in my part of Europa that is Scandinavia. Of course some criminal elements do have guns. But mostly to "protect" and intimidate each other. Rather than people not connected to criminal activities. And there is also no such thing as handgun carry permits, or Concealed carry permits. Only police or military personnel are allowed to carry guns in public. But only then ordered to do so. It is some exceptions. Like transporting weapons used for hunting, or target shooting. But it is strict rules about how this should be done.In the countries with "strict" gun control laws, does the criminal element have "guns"?
Washington DC has some of the strictest gun control laws, yet, the murder rate is still high. Too bad the criminal element there knows the general population is unarmed and them being armed gives the criminal element a huge advantage.