Sorry for the delay, Martin....
There are numerous possibilities here:
1. Oswald could have just simply guessed (correctly) when he said to Fritz he had seen Jarman & Norman on the 1st floor. After all, we know for a fact that both Jarman and Norman DID see (and talk to) Oswald a little earlier in the morning on the first floor. So Lee knew that both men did come to work that day. And there weren't THAT many warehouse workers to choose from (via a "wild guess" scenario). And maybe Oswald had seen Jarman & Norman together on previous days and assumed they hung out together. ~shrug~
2. Oswald could have actually been in the Domino Room shortly before 12:30 and could have physically seen J&N. (I don't think this is the correct solution, but I can't entirely discount it either.)
And how about this possibility....
3. I'm wondering if it's just remotely possible (due to the open windows on both the 5th and 6th floors) that Oswald could have leaned out of his SN window, looked down toward the fifth floor, and caught a glimpse of Jarman & Norman leaning out of their respective windows below him? (Granted, this is probably not a likely solution---especially since Oswald would not likely want to "advertise" his presence in the Sniper's Nest by leaning out of his window---but can it be ruled out entirely?) ~additional shrug~
More food for thought anyway.
1.Oswald could have just simply guessed (correctly) when he said to Fritz he had seen Jarman & Norman on the 1st floor. After all, we know for a fact that both Jarman and Norman DID see (and talk to) Oswald a little earlier in the morning on the first floor. So Lee knew that both men did come to work that day. And there weren't THAT many warehouse workers to choose from (via a "wild guess" scenario). And maybe Oswald had seen Jarman & Norman together on previous days and assumed they hung out together. ~shrug~Yes, I suppose Oswald could have simply guessed, but it wasn't a matter of just saying he had seen Jarman and Norman on the first floor. If he intended to establish an alibi, his guess would have had to have been far more precise than that. To give such a guess any credibility, the scope would have to have been far more narrow, as seeing Jarman and Norman on the first floor at any time other than minutes prior to the shots would not have been much of an alibi at all. So, the guess would have to include the correct persons seen at the correct location and at the correct time..... that would be some guess, right?
2.Oswald could have actually been in the Domino Room shortly before 12:30 and could have physically seen J&N. (I don't think this is the correct solution, but I can't entirely discount it either.) This seems the most logical and likely scenario for me. It doesn't make sense for Oswald to try to establish some sort of alibi by telling his interrogators a story which could easily be dismissed, if not true. Oswald clearly intended to place himself at a location which
he had seen Norman and Jarman pass by just minutes prior to the shots. That, IMO, was the intended alibi instead of that Norman and/or Jarman had seen him. All the latter two really needed to be asked was if they passed by the Domino room minutes prior to the shots. No need for them to see Oswald, just confirmation that they were there where Oswald said he saw them would have sufficed.
Unfortunately Jarman and Normad were (IMO) asked the wrong questions about having eaten lunch with Oswald or even seeing him.
Having said this, I would be interested in why you feel this is not the correct solution, David?