He certainly did, he said it several times. It was very important to his theory of what may have happened.
Here's a partial transcript and a link to a video of the interview:
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..."What is disturbing is, this has to be a professional hit job. I got my last email from Jack on the 21st, other people had gotten them on Christmas Day, and he had a very large electronic footprint - he put out hundreds of emails a day, perhaps. He had lots of connections. Most of the well-known correspondents in the DC area knew him, had worked with him. Former Secretary of the Air Force Mike Wynne, he was his civilian assistant and extremely close to him. They were classmates at West Point, along with General Petraeus and others."
"The fact was that his latest expertise was really in cyber-warfare. It was early in his days in the military that he wrote a paper on chemical weapons, but his real and latest expertise was cyber-warfare, in which he helped Mike Wynne and General Buzz Moseley lead the Air Force, of all the services, into that area. And I participated in a number of meetings with, when he went with MITRE, that he had convened, a group of experts. And we discussed cyber-warfare. So that's the area that really he concerns me - he was very, very knowledgeable in that, plus the very high security clearances that he had. That's why I think that the FBI has go to get involved with this and find out who did this."
It's pure speculation on my part based on Gen. McInerney's theory, but the FBI may have thrown a blanket over the investigation and we may not get much new info for some time.