I don't know who the witness is, but I would like to know. I agree that credibility is an issue for any witness. Without knowing who that person is and what it is that they saw, we can't really determine how credible the information is. I lean towards the somewhat credible side of the spectrum, but only because DS II's defense attorney was willing to publicly defend his client to the media using that information. If it was not at least somewhat credible, I don't believe that MN would've said anything at all. So, in this instance I am willing to give the benefit of the doubt to MN, but if the information was communicated to the media by DS II, I would probably view it as less credible.
I don't think that the timeline proves that DS II couldn't have been responsible for Michelle's disappearance. But, I do believe that it limited his options. That said, in my opinion, I think that DS II would've tried to cover up his crime as quickly as possible, which is why I think that he would've opted to hide a body within walking/running distance to his condo and temporarily conceal the Hummer in a large parking lot until it could be moved elsewhere. I wonder if OPD has requested the security tapes for parking lots around that area. Or, if the roadway cameras show the route that the Hummer took when it left his condo.
