Here's a review of conspiracy law by Empty Wheel and then she applies it to the KAG indictment.

CONSPIRACY LAW – EIGHT THINGS YOU NEED TO KNOW.

One: Co-conspirators don’t have to explicitly agree to conspire & there doesn’t need to be a written agreement; in fact, they almost never explicitly agree to conspire & it would be nuts to have a written agreement!

Two: Conspiracies can have more than one object- i.e. conspiracy to defraud U.S. and to obstruct justice. The object is the goal. Members could have completely different reasons (motives) for wanting to achieve that goal.

Three: All co-conspirators have to agree on at least one object of the conspiracy.

Four: Co-conspirators can use multiple means to carry out the conspiracy, i.e., releasing stolen emails, collaborating on fraudulent social media ops, laundering campaign contributions.

Five: Co-conspirators don’t have to know precisely what the others are doing, and, in large conspiracies, they rarely do.

Six: Once someone is found to have knowingly joined a conspiracy, he/she is responsible for all acts of other co-conspirators.

Seven: Statements of any co-conspirator made to further the conspiracy may be introduced into evidence against any other co-conspirator.

Eight: Overt Acts taken in furtherance of a conspiracy need not be illegal. A POTUS’ public statement that “Russia is a hoax,” e.g., might not be illegal (or even make any sense), but it could be an overt act in furtherance of a conspiracy to obstruct justice.

Conspiracy law allows prosecutors to hold one cog in a larger crime responsible for the actions taken by everyone else with whom he entered into a conspiracy — and the agreement can be implicit (see Rule One). Once prosecutors show that a person has entered into a conspiracy — here, to transport migrants first into the US and then around the US — then he is on the hook for everything else his conspirators do. Conspiracy law allows prosecutors to rely on communications from some members of a conspiracy without requiring them to take the stand to validate those communications.

Two more points. First, it is totally normal for DOJ to refer to co-conspirators anonymously as they do here. In addition, it is not at all unusual for DOJ to throw a great deal of energy — such as (hypothetically) a cooperating agreement with CC1 and possibly even favorable treatment of CC6 to substantiate a case against a lesser member of a conspiracy if they want. That’s likely what happened here.

With that as background, here’s what the conspiracy looks like:

(there's a nice little chart about half way down)

emptywheel.net - The kilmar abrego garcia indictment