PARK CITY, Utah (Court TV) — In a motion demanding financial documentation involving her late husband’s trust, Kouri Richins accuses her sister-in-law of paying witnesses in her criminal trial.

Kouri Richins, a Utah mother of three who wrote a children’s book about coping with grief after her husband’s death and was later accused of fatally poisoning him, looks on during a hearing Monday, Aug. 26, 2024, in Park City, Utah. (AP Photo/Rick Bowmer, Pool)

Kouri is charged with murdering her husband, Eric Richins, with a fatal dose of fentanyl in a Moscow mule in 2022. Prosecutors have accused Kouri of plotting the murder to cash in on Eric’s life insurance and trust accounts.

A new motion filed by Kouri’s defense accuses Eric’s sister, Katie Richins-Benson, of failing to comply with a

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