Feminists

Although I have no idea why they would from a legal standpoint. They must have gotten some kind of plea deal or the mother could have nailed them in court in her own plea deal.

The evidence sounds largely circumstantial. At least from the article. I suppose you can match the dna equivalent of a bacteria or virus and say they are the same strain, etc, but it sounds like a long road to explain in court.

But no eye witnesses, no physical evidence (other than the std's). The mother could be torn apart in court. The science , chain of custody, and procedures used could be challenged.

But pleading guilty eliminates all doubt and ends the process cold. Good for all concerned; especially the girl.