Thank you everyone, I was so shocked and scared for my babies, so I just got her and went back home ASAP. I looked back to see if the guy who talked to me was still there, and of course, he wasn't there, so I couldn't report it to the police, but I'm definitely reporting it to the park secury. I'm still so scared for my babies, so I'll skip the park for today.
For people who are comming to the dog show in midtown, central park starts in 59th street and ends 110th street. If you want to take your babies to the park, make sure that you keep them short leashed. I've been taking them to the park for more than 2yrs now and this was first time something like this happened, so I don't want to scare people. However, I rather be safe than sorry. I don't want anyone to even come near my experience.
It is just too much.
I already warned other dog owners at the park, so we can watch out for each other.