I don't think the plea agreement this Tuesday will be the end to this. Other chips will fall. I think that VA LE will have gone as far as they can with what they have against LLW2. He had too much going against him and probably made the correct decision to plead out and spare his life. LLW2 was the one who placed himself at Wheaton Plaza and brought the bloody duffel bags to VA, so they have him dead to rights. The others weren't so conspicuous or stupid. The recommendation to plead was the decision by committee of his multiple attorneys, private investigators, psychologists, death penalty experts, consultants, etc... At the end of the day after gathering up all the information (and spending several hundred thousand dollars of tax payer's money) I'm sure they sat him down and said "You've screwed yourself, and we can't save you." Also, MD and VA LE did an outstanding job putting together the tentative penalty phase evidence and testimony against LLW2. Just an insurmountable wall of overwhelming reasons to sentence LLW2 to death if he was convicted. I think the specter of that loomed large and hung heavy over LLW2 and his team.
There are so many other pieces to this puzzle that were outside of Virginia. We'll see what Maryland has to say about RAW1, maybe not for murder, but something. Not having enough compelling evidence to charge someone with murder is not the same as them being entirely innocent. As for the rest, I suspect there were several others and they are dead. Maybe a few just within the past few years. Perhaps a cousin and an uncle in-law of LLW2.
I don't think its all over yet for LLW2 either. We may even hear from some other states who will want to take a harder look at LLW2 for some of their cold cases. I think they have been silent as the VA case against LLW2 proceeded, because they did not want to muck anything up for VA LE.