it's already starting to have problems just as the suspects have once you start looking into the story. I just don't believe it.....
One of the few problems I have with it is that it could have very well been a woman with ideas of grandeur and fantasy... how it was a lonely divorcee, and in her fantasy they sleep together a few days afterward, and live happily ever after... but for someone to go on with the story, on six phone calls, and all of it fits well... And if her, and was a fantasy, why call Gunther, and ten years later no less? She obviously knew her LeClair contacted him more than a decade ago, as there was no book or info about Cooper and Gunther. For a couple, to toy with someone like that, to waste that much time finding his address, typing the letters, the phone calls, AND over that length of time, would be truly bizarre. This is the psychology of it all that is so intruiging, and makes me see smoke here. Most couples don't even stay together that long. I go back to the idea that, unless this were a covert OP by a skunk works group to get funding,, I imagine only one scenario whereby Cooper or his family, didn't come clean by now, for the notoriety. Even a dog wants to feel important, as it is the most powerful emotion. And that scenario is an untimely death, and then followed by Clara, who was about to come forward until she realizes she will still go to jail, and that she was childless. That scenario would explain it quite well. Reminds me of the deep throat saga with Mark Felt... he is a celebrity now, and eventually that person wants to be known, especially before death. Or even John Dillinger, who wanted everyone to know who he was.
Someone mentioned Himmelsbach may have outsmarted himself, and that is quite possible he was trying to set a trap with lies so she'd get annoyed and prove more that who she was, and slip up as so they could find her, and she got spooked. And that Gunther continued to pursue her until he died, on his own time, is very sublimely interesting. Gunther doesn't come across as some rube, either.