If it's backup you require, consider that there is nothing backing up the idea that Cherami mentioned Dallas before the assassination. No reports were ever filed. In 1967, Weiss even told investigator Frank Meloche that he wasn't even certain whether or not Cherami spoke of Dallas before or after the assassination.
Cherami most likely made statements to Lt. Fruge (Louisiana State Police) AFTER Ruby shot Oswald saying that Ruby and Oswald knew each other. I believe she even went as far as saying they were "bed partners". In my opinion (and I dove hard into this about ten years ago), after Oswald was killed, Cherami claimed to Fruge that Ruby and Oswald knew each other, i.e. Oswald was inside Ruby's nightclub. In my opinion, this is all that was said by Cherami regarding anything assassination-related; nothing beforehand.
In 1967, preparing for the Shaw trial, Garrison investigators interviewed hospital personnel at the East Louisiana State Hospital and not one person remembers hearing any talk of Cherami ever warning of or speaking of an upcoming assassination in Dallas before it happened.
"If it's backup you require, consider that there is nothing backing up the idea that Cherami mentioned Dallas before the assassination. No reports were ever filed."
How do you know that no reports were ever filed?
This is another statement that needs backing up.
You've basically accused Fruge et al. of lying about the whole affair. I've asked if you have evidence of that accusation and you've answered with another statement that needs backing up!
I find it incredible that Fruge would not have filed a report about the flight to Houston and the attempted bust of the narcotics deal based on Cherami's intel.
I find it incredible Fruge would involve Colonel Morgan and Colonel Burbank in this lie (he reports telling them both about Cherami's "prediction")
I just basically find it incredible that Fruge would come up with something like this at all. What's the point? Why involve so many high-ranking people who could call him out on his BS? Why involve Durham and the Customs department and others? It's such an insanely massive lie.
How are Fruge, Weiss and Magruder connected? Are they in on it together or making up their stories separately?
I'm really unconvinced by the way you're just trying to brush this off as it's a done deal.
You're point seems to be that we weren't in the vehicle when Rose told her story so we'll never really know.
The same is true for the 6th floor of the TSBD at the moment of the assassination.