"Grading Scandal" in a nutshell, please

[Phil68]

Hey guys! I am enjoying this forum so much looking at the cards and reading insights, etc. I have been collecting but really not immersed in the "2019 Grading Scandal" as I have heard and read it referred to.

What I think I know is, Brent sold some cards that were doctored and a forum called Blowout Cards brought attention to it. PSA was the TPG in offense. I read where Evan Mathis has allegedly trimmed up some rather expensive cards and has sold them? Is this all tied in together?

Is that it? Is there more? I see guys post back and forth and feel like the kid in the cafeteria without a place to sit, Lol. I'm reading about it but can't really grasp the issue beyond what I stated above.

I'm discussing with a good friend tonight that is interested in learning about it (he casually collects today's cards) and I found myself saying "Yeah, it sounds terrible. Scary stuff"...that seemed a little short and I heard myself sounding like an impeachment witness--not good.

How about a cliffs notes version--in a nutshell--what happened, what is continuing to happen and who has stepped up to be accountable and who is being a weasel. It would help a brother out AND others that troll around here could gather some information without having to bounce around thread to thread.

Facts only, if you can & Thank You!