“The kid was Jack Ruby’d. “ The kid was Lee Harvey Oswald’d.
The snipers played Jack Ruby’s part.
My guess is that the CS team smelled a rat, but refrained from taking a proactive shot because they’d been led to believe that local LEOs were in control of the building. We need USSS to produce the CS team at once (before something happens to them) for questioning. Separately, before they can agree on a story.