Genuine question, as I am open to the idea that JW just made a really terrible mistake in lying about how he delivered the ransom money in a quadruple homicide and is 100% innocent. Given that we have heard basically nothing from LE about anything, how can one know that not hearing more about JW means that LE are not suspicious of his involvement?
If accurate/true/etc, it sounds like a reporter asked CNN's unnamed source probably (guessing, IMO) asked something along the lines of, "Do you believe that JW is involved?" That source said something to the effect of, "We don't believe he is involved, but we have not yet reached that conclusion." That is a pretty murky, contradictory statement. The other option would have been for the source to say, "Yes, we believe JW is involved." But because LE is putting out info very slowly and strategically, perhaps that source did not have the authorization to share that information, nor did that source find it smart at this time to do so (for reasons we don't know).
But he/she also did not say that is has been concluded that JW is NOT involved. That source left it open. It sounds like LE has not made (or at least disclosed) a definitive decision on JW, so I'm not sure I would jump to assumptions of what they actually think.