Why was Booth admitted into the presidential box?

[LincolnToddFan]

Mr. Fazio,

I do distinctly remember reading a while back that a messenger-was he from the State Department?-delivered a message to Lincoln which he read and put to the side. He decided that it didn't need his immediate attention.

Does anyone know what the message was? Was it located in the State Box when the other items(opera glasses, etc) were recovered?

I simply cannot wait to read your book. To say that it sounds fascinating is an understatement!