If Oswald was telling the truth, then Frazier was lying.
Let's see if we can shed a little light on this aspect....
First of... Was Lee ever asked if he carried the rifle in a paper sack?
I have found NOTHING to indicate that the authorities suggested or even hinted to Lee that he carried the rifle in a paper sack.
If the cops had found a paper sack that was large enough to carry the rifle why wouldn't they have said..."
We found the sack that you used to smuggle the rifle into the building.... It has your palm print on it. What we want to know is how did you manage to handle and carry that package without leaving more prints on it?
No wait..... I'm being sarcastic and factitious ... But the fact is, they never suggested to Lee that he'd carried a rifle in a paper sack.
If Oswald was telling the truth, then Frazier was lying.I believe Lee was telling the truth.....