As to Cardone, you are correct. She was in family law.
As to Compean, I was amazed that he waived his miranda rights that night. All I can think is he was half asleep as the agents arrested him at midnight on a Friday. But his actual statement was even more forceful than you portrayed. He said "He was pointing something shiny with his left hand. It looked like a gun. This is when I started shooting." That he later he acknowledged he was not certain it was a gun, is a far cry from recanting. When I saw the OIG use that word, I hit the roof. IMO, the entire DHS-OIG report is deceptive--and that is a kind description.
I intend to read through a bunch of these and I hope a lot of other people do also. Hopefully, the thread will provide some useful input. If nothing else, it is a place to vent, lol.
Hey....disclaimer...Im just an engineer, not an attorney.
I just watch some Law n Order shows every now n then... ;0)