Bronwyn is the daughter of financially well-off professionals who both attended Yale and encourage honesty and hard work. Bronwyn feels pressure to achieve and follow in their footsteps by attending Yale and achieving professional success. Since elementary school, she has worked hard and been a leader and a problem solver. During her junior year of high school, Bronwyn experienced her first significant academic challenge: chemistry. When hard work and force-of-will failed to improve her grade, Bronwyn took the opportunity to copy the teacher’s list of exam questions and answers. At the time, she felt she had no other choice as she would otherwise have done so poorly in the course as to jeopardize her chances of attending Yale. She reasoned that one academic struggle should not determine her future.

Simon discovered that Bronwyn cheated and resented that she maintained her grade point average through dishonest means, putting herself in a position to achieve valedictorian and taking Simon out of contention. He planned to ruin her life by exposing her secret and making her look potentially guilty of murder.

Bronwyn has had a crush on Nate Macauley, another of the murder suspects, since elementary school. The murder investigation brings them closer together, and they begin a relationship.