Where did that confession come from?

I just started watching Michelle After Dark's video regarding the State's fabricated timeline being destroyed by the white van video and it's got me trying to work something out.....help me out here.

Rick "confessed" to being interrupted by the white van. Now we know the white van wasn't there until much later...too late to fit into the State's timeline. So where did Rick get that idea if it never happened? Did he just coincidentally dream something up on his own while he was tripping out on Haldol? No...that's absurd. Obviously it was planted by someone else.

We also know that Wala and GH talked about the white van. So....the only reasonable connection to Rick is Wala. But wait...where did GH hear about the white van....if it never happened??? Why would the white van even be an issue if it was just a guy coming home from work around the same time as the crime?

The only way the white van would have been integral to the crime is if it fit into the State's narrative .... but it never happened. The white van was too late to be witnessed per their timeline. So the whole white van interrupting Rick was purely an imagination of the State. So how did GH, et al, know about it? Did they imagine the exact same thing (van sighting scaring Rick into forcing the girls across the creek) in the same way the State did? No...again...absurd.

The only way the public was aware of the van interrupting Rick is if it was leaked from the State. Rick's "confession" of something only the criminal would know is absolutely fake....it's something only the State would know....because the white van never interrupted Rick.

How is this not the definition of a frame job?