You’re right the message was very short, which means it could have been something like “you will be indicted” or “indictments are coming.” Or something entirely different.
The look on their faces tells us it was a life changing message.
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Seems like the “message” was darned brief. I mean, I was never convinced Slow Jeb had quite enough time to even see it before Laura Bush closed it up. Jeb didn’t have his glasses on, either. No time for him to even squint, but he seemed to have got the message. And, exhaled in an “Oh, nose” fashion.
Maybe they drew a picture for Yeb!.