Some interesting side notes:
In Florida, there is no statute of limitation on Perjury in proceedings related to a capital offense.
The statute of limitation is a time limitation on the State of Florida's ability to initiate a criminal prosecution. This limitation sets forth specific time periods within which a criminal prosecution must be initiated. If the state fails to bring a case within the specified time period, it...
brycefetter.com
In Florida, a defendant in aid and abetting can still be convicted even if he has no knowledge of the person who actually committed the principal offense...
....the principal need not be named or identified; it is necessary only that the offense was committed by somebody and that the defendant intentionally did an act to help in its commission
www.ce9.uscourts.gov
In Florida, the deliberate ignorance aspect is incorporated into Aiding and Abetting, as in:
The defendant’s deliberate ignorance of the actions taken by another person who commits a crime is sufficient to satisfy the knowledge required for the offense of aiding and abetting that crime
www.ce9.uscourts.gov
And deliberate ignorance can be applied when the underlying criminal charge is a conspiracy charge....
United States v. Ramos-Atondo, 732 F.3d 1113, 1120, 1124 (9th Cir. 2013) (deliberate ignorance instruction may be given in conspiracy case)
www.ce9.uscourts.gov
So there would appear to be a number of ways that charges other than those brought against KM and CA, can be brought against WA. And its possible that the indictment for DA may be modified somewhat....because the A & A charge can be so all encompassing, and at her age, any longer interval behind bars is the same as LWOP.
JMO, IANAL, and I would not be wanting to convince a jury that one defendant was a "conspirator" and another was only an "abettor" in the same conspiracy oriented crime.