The few counter-examples offered by gun-control zealots do not stand up under scrutiny. Perhaps their strongest talking point is that Britain has stronger gun-control laws than the United States and lower murder rates.
But, if you look back through history, you will find that Britain has had a lower murder rate than the United States for more than two centuries — and, for most of that time, the British had no more stringent gun-control laws than the United States. Indeed, neither country had stringent gun control for most of that time.
In the middle of the 20th century, you could buy a shotgun in London with no questions asked. New York, which at that time had had the stringent Sullivan Law restricting gun ownership since 1911, still had several times the gun-murder rate of London, as well as several times the London murder rate with other weapons.
Neither guns nor gun control were the reason for the difference in murder rates. People were the difference.