Andy Bennett was a student at St. Vincent High School in Pasadena. He was a classmate of Mallory Richardson. Bennett and Richardson had sex on their prom night in 1999. It is not clear whether it was consensual. Richardson gave birth to the baby, a boy. The baby was then adopted by Jonathon and Vivian Purcell who name the child Nicholas Purcell.
Some years later Bennett commits a series of rapes in the Los Angeles area. The media label him as the Pillowcase Rapist. He is not caught for many years until the Open/Unsolved unit of LAPD investigates in 2024. Old DNA evidence connects one of the rapes to Nicholas Purcell, Bennett's unacknowledged biological son. Colleen Hatteras, working as a volunteer genealogical researcher, makes the connection to Bennett. In a desperate attempt to cover his tracks, Bennett kills Hatteras. Ballard then confronts and arrests Bennett.