Is there a full moon or something? How do you get a "rock solid alibi" by putting yourself in the location from which the crime was committed (i.e. TSBD)? And a suspect doesn't get an alibi from claiming to see others. They get an alibi when some neutral witness can put the suspect at a different location at the time the crime was committed. Oswald claiming to see someone in the lunchroom who didn't see him doesn't do that. Obviously, Oswald knows his coworkers, who they hung out with, and what they look like from weeks of working in the building. It wouldn't take Nostradamus to come up with that tale. He has no alibi.
No person can reasonably believe that LHO, a person with a well-documented history of interest in politics, who checked out and read JFK's book from the library, wouldn't so much as go outside to watch the motorcade go by his workplace if he was innocent. If he was part of some conspiracy that involved framing him for the crime, the conspirators wouldn't risk allowing him to be in the lunchroom where he might be seen by someone at the time of the crime.
And a suspect doesn't get an alibi from claiming to see others. There are many ways an alibi can be established. If, as Walt says, he sees two particular individuals at a specific location and time and it turns out they were indeed there at that time that clearly confirms that Oswald must have been near the location at that time in order to see them.
They get an alibi when some neutral witness can put the suspect at a different location at the time the crime was committed. That's another way to get an alibi but most certainly not the only one
Oswald claiming to see someone in the lunchroom who didn't see him doesn't do that. Claiming to see someone might not do it, but seeing two particular individuals at a specific location and time does.
Obviously, Oswald knows his coworkers, who they hung out with, and what they look like from weeks of working in the building. It wouldn't take Nostradamus to come up with that tale. Utter stupidity. It doesn't matter if Oswald knew his co-workers and who they hung out with. This was a singular event and Oswald could not have known these two particular individuals were at that location at that particular time unless he was there to see them.
No person can reasonably believe that LHO, a person with a well-documented history of interest in politics, who checked out and read JFK's book from the library, wouldn't so much as go outside to watch the motorcade go by his workplace if he was innocent. If he was part of some conspiracy that involved framing him for the crime, the conspirators wouldn't risk allowing him to be in the lunchroom where he might be seen by someone at the time of the crime. There you go again with another classic meaningless strawman.