The question of who killed Vance's wife on NCIS is answered directly in the show: Petty Officer Third Class Holly Flax died in the Season 16 episode "One Man's Trash" after murdering Navy Lieutenant Commander Pamela Vance, the wife of NCIS Special Agent Timothy McGee, then taking her own life. This event sets up McGee's ongoing grief and influences his character arc in subsequent seasons. Below is a detailed breakdown of the episode, the characters involved, and how the investigation unfolds within the series' long-running procedural framework.
