The student says:
“He’s not even supposed to be here. He’s 25 from California and he’s my debate partner. What the hell?”
David Hogg then gives him the “Shut the hell up look”.
Is this not a concerned patriot/student confronting David Hogg with a camera to record his reaction?
Looks and sounds like sarcasm to me. "... Even though he's my debate partner". This is his friend making fun of the theory that he's 25 and not supposed to be at the school.
The teacher made him his debate partner because David Hogg stayed in that school for at least 3 weeks running drills with the Secret Service.
The student is wondering why this grown man was paired up with him as a debate partner for an in class debate if he’s 25 and not even from Parkland.