What I Know

Lore & Background

In the episode, detectives Linden and Holder close the Rosie Larsen case, arresting the person responsible. The Larsen family prepares to leave their former home but learns a family member was involved in Rosie's death. Darren Richmond becomes Seattle mayor only to discover that campaign manager Jamie Wright was involved. Jamie commits suicide by cop after pointing an unloaded gun at Linden. The detectives later confront Terry Marek, who admits she shifted the car into drive, causing it to roll into the lake with Rosie inside. Terry insists she did not know Rosie was in the trunk.

Reader's Guide

The episode was originally intended as the series finale due to the show's cancellation, but AMC revived The Killing in early 2013. Actress Jamie Anne Allman, who played Terry, learned she was the killer just before the table read and was upset by the revelation. The episode received generally positive reviews, with TV Fanatic's Sean McKenna rating it 4.7 out of 5 stars, though he noted initial uncertainty about his feelings. The episode's title comes from Rosie's school project film, which she calls "What I Know," showing her dreams and love for her family.

Did You Know?

• Jamie Anne Allman learned she was the killer just hours before the table read for episode 13 and started crying upon hearing the news.
• The episode was originally the final episode to air due to the show's cancellation, but AMC revived the series in early 2013.
• The gun Jamie Wright points at Linden is later revealed to be unloaded.
• Terry Marek's car had a broken tail light, which helped Linden connect her to the crime scene.