I wonder how many of the people who don't think Oswald could get from the 6th floor lto the 2nd floor lunchroom in time for his encounter with Baker believe he moved from the front steps in time for the meeting with Baker. There's as much chance that it is Elvis in the doorway than it is Oswald.
As for Groden, I last saw him at a table next to the GK selling his self-published books because none of the publishing houses would peddle his crap anymore. I almost felt sorry for him. Almost.