It's a cat. The security guy realized it's a kill-or-be-killed situation. He did the right thing.
I'm sure the cat is getting fat on palmetto bugs, hot dog ends, Clevelander refuse (hey, where else would they throw it but under the statue), and fan vomit.
Oh wow, they could've just reached down and scooped it up but the security guy was too scared hopefully they've got someone with a clue out there tonight getting control of the situation, that cat looked terrified at the end of that video