So, the implication is that none of the known members of the umbrella club match the CODIS-eligible genotypes and that all who have been sampled have been excluded.

I don't know if I'd go that far ...

Mame has indicated that (inside) information she has implies there were INCONCLUSIVE results on some of the suspects compared. I think I'd also be somewhat reluctant to say that BEFORE the files were all turned over to Keenan's office that ALL tests that needed doing had actually been done. (Didn't I read a statement from Bennett - recently - that the first months were spent sorting through all the files and getting tests done that needed doing - or something along that line?)