I can't think of anything that Doug could put out that would satisfy me wrt Rob being in Rehab all this time.
Whatever he does put out is going to be weak, it's going to be backed up by ambiguities and it's going to leave 1,000 more questions than it answers.
Short of a statement from the head of a reputable rehab facility, I'm probably not going to believe it.
To that point, Doug shouldn't name the location, and if he does he's an a-hole. The privacy of other patients needs to be maintained. You just know if it came out that Rob was staying at 'xyz', every other patient at 'xyz' along with their families and friends would be mobbed by the media underbelly for an inside scoop.
For others here, what COULD Doug put out there that would prove to you that Rob has been in rehab?