Fish - this was the biggest disappointment of the entire show. I had doubts about Jada to begin with, but she started off with a really strong performance. But then they just took the character all over the place and most of the time it felt like she was in another show. Then suddenly she's back in Gotham going wild and after all that she gets put down by the Penguin? Ummmm, no. I suspect she wasn't happy with the show or something and decided to leave, and after that the writers just threw her off the cliff - literally.
She landed in water. If television has taught me anything, it's that if you land in water, no matter the height you're dropped from, you will live.
Plus, I think she's on the show purely to spite the legions of viewers who find her friggin' annoying as hell. I have a feeling the writers are just sadistic pricks in that regard.