This video of Oswald in the hallway is very illuminating. He is brought into the hallway through a door, the door to the elevator room. You see, they had two elevators, a public one which only went as high as the 3rd floor, which is the floor they're on, and a private one, exclusive to the PD, which went up to the 4th and 5th floors where the jail was.
So, they had just brought Oswald down from his 5th floor jail cell for his Saturday evening interrogation in Fritz' office on the 3rd floor. As you came out of the elevator room, it was just a short walk down the hallway to the Homicide Bureau, where Fritz' office was, and that's what they're doing.
So, Oswald enters the hallway of the 3rd floor, and what does he do? He walks up to someone to engage in conversation.
Do you realize how unusual that is? Oswald had to know the guy. He didn't just walk up to a stranger. But, who could he have known in this situation?
There is only one possibility: one of his interrogators. He certainly didn't walk up to talk to a reporter or a cameraman. It had to be one of his interrogators, someone he got to know well enough to engage in casual conversation with. But, who could he have gotten to know well enough? There were only two men who attended all of Oswald's interrogations: one of them was Will Fritz, and the guy he walked up to talk to wasn't Fritz. The other was James Bookhout.
And be aware that there is a chance that Oswald knew Bookhout from before the assassination. The reason I say that is because Oswald definitely knew Hosty from before the assassination. Hosty's name and address were found in Oswald's address book. And you know the story about Oswald going to the Dallas FBI to speak to Hosty and then leaving a note for him. So, Oswald must have known Hosty, and therefore, he may have known Bookhout as well since Hosty and Bookhout both worked in the Dallas office of the FBI and often worked together.
There is no one else but James Bookhout that Oswald could have gotten to know well enough to feel comfortable enough to go up to in the hallway to continue talking to. So, on the left, this has to be James Bookhout to whom Oswald is talking.
And keep in mind that we already knew that Bookhout was short because Hosty said that Bookhout had to stand on a pedestal in the hallway (not on this occasion) to look for him (Hosty). That was right before the first interrogation. Also, Bookhout told the WC that he watched the motorcade on Main Street but he never saw JFK because there were people were in front of him. Obviously, if he was tall that would not have been a problem.
So, what did Oswald go up and say to Bookhout? He asked him a question: "So, what do you have against Broby?"
Now, keep in mind that with audio, as with video, it could easily have been altered. They could have dubbed in another word to replace one they didn't want us to hear. For instance, did he really say Broby? I don't know who that could have referred to, and who knows, maybe it's bogus. But regardless, we definitely know that Oswald went up to Bookhout and asked him what he had against somebody. And it must have been the continuation of a previous conversation in which Bookhout expressed some disdain for someone.
So, what I'm guessing is that Oswald may have cited someone who would vouch for him, and Bookhout may have disparaged the guy. And Oswald was following up on that.
Now there are other weird things about this video. First: the entrance that Oswald received was surreal. You could never imagine that a double murderer could be welcomed this way. You hear guys say as Oswald emerges, "Here he is; there he is..." And there's a lilt in their voices, like they're glad to see him. What I am reminded of is Ed McMahon welcoming Johnny Carson with "Heeerrrre's Johnny." Not as kidding around as that, but in that direction, in that tone. You would think that not one person in that crowded hallway really thought that he was a double murderer.
Now if it was that way in the hallway, and it was, then I think we should assume it was that way in the interrogation room, and maybe even more so. This was the evening before the morning that Oswald was shot and killed. The decision to do that must have been made already, and they knew they needed some cooperation from Oswald. My thesis is that they told him that they believed him that he was a government agent and not guilty of anything, and they were going to get him out of this, but they had to fake his death first to protect him from all the wannabe vigilantes. So, they may have been already buttering him up for this, hence all the friendliness.
It ends with Oswald's voice complaining about the lack of a shower and the lack of being provided a book to read. But again, we can't be sure about the authenticity of any of that.
So, here's the video. I have downloaded it, in case it's taken offline.