Whatever happened to the Dallas card show theft?

[Mantlefan]

$2 million of sports cards lost last year and never found, and it feels like everybody has forgotten about it

So I was listening to somebody earlier and he said there’s some “ theory” he won’t discuss, but people with credibility think they know what happened to the cards

Does anybody know what he’s talking about?

Please don’t just say inside job without some sort of evidence. I understand a lot of people think it was an inside job and I get it but have some proof. I’m curious if anyone knows of this “theory” backed by evidence. Not just some hypothetical.