Kouri Richins Day 12: "Walk the Dog" Letter Read in Court — Fiction or a Blueprint?

Day 12 brought the moment Kouri Richins trial watchers have been waiting for. Lead detective Jeff O'Driscoll took the stand as the prosecution's final witness and read aloud the six-page "Walk the Dog" letter — found hidden inside a book in Richins' jail cell in September 2023, addressed to her mother, and never delivered to anyone.

Prosecutors say the letter is a coordination document. It directs her brother to tell defense attorneys that Eric Richins got fentanyl from Mexico through ranch workers. It instructs her mother to pass information only in person — the phones, the letter warns, could be bugged. It tells someone to erase evidence of a relationship. It directs her mother to anonymously mail photos of Eric's sister's children to media to provoke a public reaction. Every person named in it, prosecutors argue, is real. Every instruction was meant to be executed.

The defense calls it fiction. A chapter from a mystery manuscript. The prosecution points to where it was found — and to the fact that it was never sent.

O'Driscoll also confirmed that none of the pills Carmen Lauber allegedly sold to Kouri were ever collected or tested. Jurors watched footage of him telling Lauber she needed details that would "ensure Kouri gets convicted of murder" — which O'Driscoll called a poor choice of words. A notebook from the family home contained Kouri's own written timeline of the murder investigation. Texts showed the grief book was ghostwritten and framed by Kouri as practice for a larger project.

The prosecution rests after Thursday. Then come "some decisions" — including the one that may define everything.

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