Who said he was nervous?
That evil, evil, evil Deep State agent, Brewer, for one, and at least one person in the sparsely-filled theater who said he was a-switchin' seats like crazy and sittin' next to people he evidently didn't know, as though he was a-tryin' to "blend in" and look innocent an' everythang.
D'oh
But I suppose it could be argued he was just tryin' to find his evil, evil, evil Deep State handler who was, unbeknownst to Lee "The Pawn" Oswald, was a-settin' him up to be the patsy for the assassination!
LOL
-- MWT
PS And earlier, didn't the cabdriver say Oswald had told him to let him out a block or two past his residence, as though he was checkin' it out so see if the police wuz there yet?