British march against knife crime

This from the BBC sounds familiar:

Over 1,000 people have marched through London to a peace rally, calling for an end to knife crime.
Their faces shone out from T-shirts worn by their families and friends - the victims of knife and gun crime in recent years.
The images of the young men and women captured in happier times were framed by their names and poignantly, the dates of their births and deaths.
The peace rally, in terms of noise, was anything but peaceful. Whistles and horns punctuated chants of 'save lives, stop the knives' as the marchers headed for Hyde Park. . . .

Thanks to Lonan Dubh for the link.