Jessica Rossi is a young ADA who came from a poor family. In the pilot episode, she is shown fighting with her brother after he asks her for a loan. It was later mentioned that Jessica's father is abusive to her mother and has been for a long time. She is a fierce and often unrelenting ADA who frequently goes over her bosses' heads and takes big risks to punish the criminals she prosecutes. Jessica, along with Christina Finn, is particularly affected by the death of Mike Randolph. She had an affair with her superior, Jim Steele. Jessica mentions to Christina that she lost her first court case.

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