I think Jim Acosta knew that guy was going to pull that stunt. I watched the whole thing too including when people were first taking their seats. Acosta kept staring down the aisle with his phone camera ready. I even commented yesterday before it happened that Acosta looked like a tool standing up facing the back.
And this is my captcha. I never share these but I thought this one was good. WH ipet, whipet good! (made me think White House smacking them down lulz)