It doesn't matter which race, skin colour or culture did this, crime is crime, and we are witnessing a huge drop down of care in general. The shit seems to be floating to the top generally, thanks to a combination of low policing and a lighter hand against aggressive men in broader culture.
I get that the rags always want a race story to agitate the plebs, but the real issue is country wide.
You are exposed to increasing insanity whether you drive or take transport.
I was threatened with a knife by a group of boys in the north west a few months ago. It wasn't serious (I didn't feel they were likely to harm me thank god) but it did illustrate the casual apathy, the almost mundane acceptance of violence prevalent now amongst males, as opposed to the UK I grew up in (I am 50).