Hawkesrah - BNV has reported all the details related to the unfortunate incident to the right authorities, s/he has also posted here to alert people to be more mindful when out and about in the area.
I find your repeated references to 'blacks' offensive - particularly when BNV has already stated it was a mixed group in relation to gender and ethnicity - the common thread in the group is that they were young people. Not all young people are involved in crime and sweeping statements like yours are destructive.

I am a white adult, but I am not Rose West, Harold Shipman, Peter Sutcliffe, Myra Hindley etc etc.

Sorry to divert the topic a bit, glad you are ok BNV, thanks for raising our awareness.