What Did You Do That Summer?
In 1989, 18-year-old Kaitlyn Arquette was shot while driving through Albuquerque, New Mexico. Her murder would remain unsolved for more than three decades, while her mother, acclaimed author Lois Duncan, devoted years to finding out who killed her daughter and why.
The investigation became tangled in theories involving insurance fraud, suspicious connections and questions about whether Kait had been deliberately targeted. But more than 30 years later, a confession would turn the case in an entirely different direction—and reveal that the man responsible may have been much closer to the original investigation than anyone realized.
In this episode of Outline of a Murder, we break down Kaitlyn Arquette’s murder, the evidence and theories that kept her family searching for answers, the extraordinary 2021 confession that finally broke the case, and the painful irony that Lois Duncan died without ever knowing who killed her daughter.