RG: "As the girl was being arrested, the crowd encroached on the officers and became hostile toward officers, police said."
Judass: "The crowd becomes hostile towards the PD" - check

RG:"A 52-year-old man, called a “good samaritan” by police, attempted to help calm the crowd just before officers left the scene.
After officers left, the man was “jumped” by the group, and assaulted, police said."

Judass: "they turn tail and run? Sounds like they left this guy fending for himself in a bad situation."  - this one is iffier. The crowd was hostile, and the PD left. Is that "turning tail"? That might have been to de-escalate the situation. They did leave the guy, and the situation was bad, and he was left by himself. I think your statement "nothing in this story remotely close" is farther from the mark than any exaggerations by Judass.