London and New York have about the same population. The Times reports that in February, London managed to finally beat New York in the number of (monthly) murders due to "a dramatic surge in knife crime". London looks like it will beat the yanks again in March 22 to 21. It's been a long time coming as for the past few years London's murder rate has steadily increased (even excluding Islamic terrorism) while New York has seen a steady decrease.
The knives are to blame.
This begs the question, when will the Brits come to their senses and finally ban knives and similar pointy objects. Brits (and Europe in general) just aren't responsible enough to handle anything beyond sporks and butter knives (and we may have to rethink the butter knives).
Anyone who disagrees with this is complicit in murder by the way. You heartless bastards!