Blue Bloods has never shied away from depicting the harsh realities of police work, but Season 10 delivered one of its most devastating blows when an undercover officer lost her life in the line of duty. This tragic event didn’t just shake the NYPD on-screen—it also left a deep impact on the show's loyal fanbase, sparking emotional responses across the board.
The turning point came in the episode "The Fog of War," where Eddie Janko’s new partner, Officer Addison, mistakenly shot and killed Rachel Witten, an undercover officer he mistook for a suspect.
The entire precinct was thrown into turmoil as they grappled with the devastating consequences of the tragic mistake. The pain was especially palpable when Eddie, overcome with grief and guilt, got into an altercation at the precinct, showcasing just how much the loss had rattled her.

Commissioner Frank Reagan, played by Tom Selleck, faced the difficult task of managing the emotional fallout within his team.
When Officer Addison considered turning in his badge out of guilt, Frank intervened, reminding him of the importance of honoring their fallen colleague by continuing to serve.
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