When the man, from down the street becomes a factor, they will deal with that at that time. The young woman was a factor at that moment and the cops dealt with her right there.
But he already is a factor. All it requires is that he be visible.
Oh, and re your catty little comment about not expecting the judicial system to take home videos seriously — undetectable forgeries in modern imaging are very difficult. Consider the scandal over Barack Obama’s supposed birth certificate.
You can’t explain why the other people weren’t arrested, although they were within the same proximity and could have “pulled a gun” or done some other nefarious act.
So your idiotic premise that the cop felt threatened by the woman falls apart right there. If he REALLY felt threatened, he would have dealt with the others as well.
BUT HE DIDN’T.
Wake the hell up and pull your head out of your ***.