The guy approached her, told her to put her dog on the leash, and then said something along the lines of "Put your dog on leash or I'm going to do something you're not going to like".

And then he pulled dog treats out of his pocket(he doesn't have a dog, he carries them for confrontations with dog owners he gets into) and attempted to lure the dog away from her.

I think, if the races were reversed, the off-leash person would have been seen as the victim, and the dude would have been told "You aren't the park police - mind your own business".

However, because she called the police and said a black man was accosting her, twitter/cnn took that to mean she was trying to get the police to show up to kill this dude, which is a crazy idea to me, considering the NYPD has hundreds of thousands of interactions with black people every year and almost all of them end in the person not being killed.

She also described him as a man, and as "with a bike helmet" multiple times, which leads me to believe she was just "describing the perp" like they do in crime shows when people call the emergency services, and not saying "Hey 911, come kill this black man!"