She is the District Attorney overseeing the investigation into the murder of a student at Jacob Barber's school. Due to Jacob being Andy Barber's son, Lynn was forced to remove Andy from the Benjamin Rifkin murder case.
During the investigations into the murder, Lynn was present when Matthew McGrath made a statement with regards to his relationship with Leonard Patz. She had to make a choice as to whether to pursue this statement and offer a search warrant for Patz's apartment or to ignore the statement for lack of credibility. Much to the dismay of Neal Loguidice, Lynn approved the search warrant, allowing Pam Duffy and her team to conduct the search.