>> reporter: finally, it was time for andrea to tell her story to a jury. >> as well as i held myself, a part of me was nervous that i would have to, again, go through this traumatic incident that happened to me all over again. >> live through it again. >> yes. >> reporter: on the stand she recounted that night back in 2004 at cosby's home. when she finished, his defense team challenged her story, zeroing in on inconsistenices. on the sixth day of deliberating, the jury announced it was hopelessly deadlocked. >> today a pennsylania judge declared a mistrial..." >> when you heard it was a hung jury, was that devastating? >> it didn't feel complete. it didn't feel like justice. it just felt empty. >> reporter: it could have ended right there. but the d.a. had a message for