Can you read the part where multiple people said it wasn't a gun for various reasons, and are simply discussing what it could be?
Try applying some reading comprehension.
Don't wear a shoe that doesn't fit.
My point is, nobody there without security credentials is armed and to even speculate that it was a gun is ludicrous.
What ever an 18 year old kid has in his suit jacket pocket, nobody will ever know nor should they care.