"The man Johnny Brewer pointed out in the Texas Theater (Lee Harvey Oswald) pulls a gun and tries to use it on more cops in the theater (after Oswald had already killed one officer in cold blood just 35 minutes earlier).
"Plus, Oswald exclaims one of two things (or maybe both) -- "It's all over now" and/or "This is it". Both statements are very incriminating unto themselves. Can you imagine a totally INNOCENT person uttering either of those things as the cops try to grab him?
"Oswald just being in the area of J.D. Tippit's murder brandishing a pistol is extremely incriminating circumstantial evidence of LHO's guilt."