Sorry I misread that. Since this was a thread about Chicago creating a deathtrap, I assumed to you were saying that she shouldn’t have done that. I was mostly baffled why you mentioned she was black and gay.
Just read the article and I don’t think it applies. The article defines that tactic as actively pushing into and trapping in a small confined space like a bridge or a block. Confining spread outside of the broad downtown region that it was in is not that.