BTW, there is an interesting chapter about the Kennedy assassination in a new book about Americans and booze by Susan Cheever. She claims that the Secret Service was out until 1 AM and one returned at 4 AM from a bar run (same business as Ruby...?) and that their performance in crisis was sub-par because they were hung over. Some carried great guilt that they were not on top of it. The driver said he didn't drive off quickly enough.
Adds another dimension to the conspiracy stew.
The SS were drinking in Ft Worth. Not Dallas.