I think your internal “danger” sense is broken, those thugs look EXACTLY like the kind of scum that would do this.
I’m with you, they give me the heebie jeebies.
They are not tatooed, they are not pierced, they are not another race, they are not in hijab (or turbin), they just look like anybody you might encounter in your local Walgreens.
Of course I can’t hear them speak, and they are not displaying any weapons. But, I live in a very nice part of the country, and I see far worse at the local Strawberry Festival.