The UK continues to grapple with these random, brutal stabbings. Until politicians prioritize the safety of ordinary citizens over other agendas, scenes like this will keep happening.
Look. It's pretty obvious who is doing this stuff, and to whom. What may be random at the incident level has an overall pattern. There is a solution, however unseemly that may be to those who have helped impose the problem.
If they don't fix it, the question arises of how long it will take before the locals do.