This post has garnered 36 reviews but not a single response.....The question at the closing is: How did J.Edgar Hoover know the identity of the man ( Lee Oswald) who had been dragged from the Texas theater BEFORE the police had determined the man's identity?
That's because, as usual, your post contains a false premise. Hoover did not know the identity of the person arrested until he was told. The FBI agents in Dallas found that out around 2PM and "immediately" called FBI HQ with that information. Nothing you have cited suggests that Hoover knew Oswald's name before he received this information from his agents in Dallas. There is no mystery here.
Mr. HOSTY. No, sir; it was approximately 1:30 that we got the report that a police officer had been killed in the Oak Cliff area of Dallas, and that the police were surrounding a movie theatre where the suspect was allegedly located.
Shortly after 2 o'clock, we received information that this man had been captured and taken to the Dallas Police Department.
One of our agents called from the Dallas Police Department and identified this man as Lee Harvey Oswald. I immediately recognized the name.
Mr. HOSTY. Right. There are no regional offices. I then took the file to the agent in charge, told him that we had a case on Lee Harvey Oswald.
While I sat there he immediately called headquarters and advised headquarters here in Washington, D.C., that Lee Harvey Oswald was under arrest down at Dallas and had been observed shooting a police officer. They had eyewitnesses to his killing of Officer Tippit.