That's pretty depressing.
If I'm not mistaken, Bill Cosby admitted giving pills, admitted the sex, and claims consent was given after the pill ingestion which in essence is already ambiguous. And while I know the jury is only supposed to comment on what is presented, I'm sure most of them were aware of how all this fits into the pattern that was reported many, many times (and I read two other potential victims testified, probably of the same thing).
I get that consent while under intoxication is the greyest of grey areas but I'm a bit dumbfounded. Hope the prosecutor will try to get another trial.