And yet another snip from “History Will Prove Us Right” by Howard Willens, page 80:
By the end of January, we had begun to move along an independent path. The FBI had essentially concluded its investigation and had no intention of initiating further work to supplement or amend its summary reports on Oswald and Ruby. During the commission meeting of January 27, Rankin advised the commission that the FBI’s January report on Oswald “filled in some of the holes” in its first report, but left more than half of the commission’s questions unanswered.40 The hundreds of investigative requests and the tenacity of the staff in the following months uncovered important new information, developed new ways of interpreting the scientific and physical evidence, and brought us much clearer insights into how Oswald and Ruby could succeed in doing what they did. Looking forward to February, the commission was going to hear its first witness, Marina Oswald, early in the month, with more witnesses to follow. The pending issues with the FBI had to be addressed to the extent possible, but more conflict was virtually certain. We were now ready to start dealing with the Treasury Department about presidential protection and with the CIA and the State Department about Oswald’s foreign activities. As soon as Ruby’s trial for the murder of Oswald, scheduled to begin in February, was concluded in Texas, our lawyers would be headed for Dallas to initiate the commission’s program of taking testimony under oath from witnesses who had knowledge of the facts we needed to determine and evaluate.