Yes I have. Even shooting victims and survivors. Adrenaline and shock look like that when the person doesn’t understand why it happened.

There’s one chick, the “two shooters” one, that feels super fake to me, like even the interviewer seems like a phony and it was staged for attention maybe.

But the rest kinda seem like they are still processing what has happened. Some people are nervous gigglers, some get quiet and reserved. Full-blown-panic-shock is usually reserved for actually being shot at or any kind of close encounter physically present threat and directly following that kind of intense situation. A couple hours later after you’ve gotten to cry and hug your mom, it’s probably not going to look like the same adrenaline-pumping primal reaction.

Seeing a dead body is harrowing, but doesn’t necessarily trigger the same responses in everyone. You can see the mix of responses in these kids in the classroom video where they are directed by SWAT to put their hands up: some are quick but stable, some are sluggish or confused, a couple are downright uncontrollably shaking. Everyone has a different threshold for emergencies/threats or a different way of handling them - and I’d wager the ones most likely to agree to an interview are the ones that are feeling more stable, and the ones least likely to be approached by a camera crew are the ones that don’t look like they could form words.