I love it when characters surprise you, just like real people. When I write a scene I just try to make the characters behave in a way that feels natural to them. Sometimes that means they make a left turn and do something unexpected. Those are always the best scenes in my opinion.
It would certainly be interesting to know what the CIA knew about Oswald six weeks before the assassination, but the contents of this particular message never reached the Warren Commission and remain a complete mystery.

