From watching LE in the media over the years I can tell you this. They are extremely reluctant to name a suspect. Even to the point of saying that someone is not a suspect sometimes. They are also sometimes reluctant to name a person of interest. They have reason for that. If they name someone, that someone will usually clam up, often they will get an attorney. And the media then shows a lot of interest in the person, which complicates things. Technically he didn't lie. Apparently he is showing up for interviews. He is probably talking with them. And so far they haven't found any proof or enough proof to show that he is involved. What he doesn't say is what they think.