As I never got an answer to my question from Jack, I'll give it a second try.
BRW was on the floor until he went to join Jarman and Norman. He just was never in the SN.
And how exactly do you know for sure he was never in the SN?
Martin, Williams failed to mention his chicken lunch to authorities until Dec 2. It was widely reported in the media within hours of the assassination that the assassin was in position for some time and had eaten a chicken lunch while waiting for the motorcade to arrive. Oswald was dead by the early afternoon of the 24th. Lt Day had visited the TSBD on the 25th and spoken to the workers about the lunch and this is when it was discovered that it was tied to Williams.
The overwhelming evidence places the lunch remnants in the SN when first discovered. The overwhelming evidence shows that Williams did not join Jarman and Norman until minutes before the shooting. Willliams' various statements show obvious signs of deception regarding his movements after the elevator race. Prior to their appearance before the WC, Jarman and Norman invariably claimed he ascended with them to the 5th floor to watch the motorcade that day.
Jack, for what ever reason, doesn’t want to address these facts. Presumably it does not align with his "belief" of events. At least he is attempting to debate at some level.
Other members of the LN clan presumably would rather just ignore the consolidated statements that were collected and available to the WC investigators. Only they can explain the reason for their absence from this thread and others that have attempted to make sense of what has been presented.