I don't even know what to say to this.
How do you beat down old people? How do you threaten someone's grandpa with Mace and use force that you clearly don't need to use because of the size, weight, and obvious age difference, while all along, your buddies - including from what I saw two APA faces - are beating down another man until he's bleeding from the face (and they actually used the mace on him from what I understand)?
What possesses you to do that?
While the story is still unfolding - and technically no one knows why the possibly 60 year-old man was getting his ass kicked in a scene that I can only imagine a gang rape might start out like - The Gothamist at least reports that "every Saturday and Sunday for years now a group of senior citizens have gathered in the park to sing songs and make music".
No comment yet from the NYPD.