Who is the person behind Charlie Kirk and why is he making what appears to be a “signal”

Frank Fighting For Freedom 🗡️🇺🇸
@thinktankfranks
·
13h
PAUSE.

Who is the person behind Charlie Kirk and why is he making what appears to be a “signal” immediately preceding Charlie being shot. This is NOT a normal gesture any person would ever make.

Note the first person tips their hat. But then pay attention to the individual in the black shirt directly behind him - crosses one arm and does some type of finger signal.

This could have been his security detail.

WTH is going on here.