No--------"I had seen him some place before" is much vaguer than "I had seen him in my store before".
From Mr. Brewer's 1996 interview with Mr. Ian Griggs:
As he looked at the man in the lobby of his shoe store, Mr. Brewer did NOT recognize him as a past customer.
"I had seen him some place before"This is not a vague statement. Brewer is saying he recognised the man who was acting suspiciously outside his store and he recognised the man in the cinema as being the same man he saw outside his store and who he followed out of his store and who he was convinced went into the Texas Theater.
"I had seen him some place before" - what's vague about that?
It may be later that he specifically remembered where he knew Oswald from, but that in no way alters the fact that Brewer recognised the man.
It seems to get lost how powerful it is that Brewer pointed out Oswald in the cinema as the man he felt was acting suspiciously outside his store.
Brewer is listening to the radio about the shooting of JFK. There is an announcement that there has been a shooting in Oak Cliff, in the very area Brewer is located. Suddenly police sirens are blaring up and down the street and, as he is looking out onto the street, a guy approaches from the left who ducks into the front of his store, pretending to look at the merchandise, with his back to the street instead of showing interest in what's going on.
Brewer is convinced that the man is avoiding the police.
This man's behavior is so suspicious it compels Brewer to follow him. Brewer enters the cinema looking for this man. When the lights go up Brewer sees the man and points him out to the police. The man is Oswald.
It is very strong evidence that the man Brewer sees outside his store is Lee Harvey Oswald, particularly as Brewer had "seen him some place before".
To imply Brewer is anything other than the manager of a shoe store who did his civic duty is preposterous.
Your fantasyland
take on every aspect of this case is tiresome.