Kouri Richins, a Utah woman convicted of fatally poisoning her husband with fentanyl, was sentenced to life without parole for murder on Wednesday.

The 35-year-old mother of three, who self-published a children's book on grieving following her husband's death in 2022, was found guilty on all counts in March following a weekslong trial. The Summit County jury reached a verdict after about three hours of deliberations.

Eric Richins, 39, was found dead in bed on March 4, 2022. An autopsy determined that he died from fentanyl intoxication, and the level of fentanyl in his blood was approximately five times the lethal dosage, according to the charging document.

Kouri Richins, right, is seen during her sentencing hearing in Third District Court in Park City, Utah, May 13, 2026.

Trent Nelson/The Salt Lake Tribune, Pool

Kouri Richins was found guilty of aggravated murder, with prosecutors saying she spiked his drink with a lethal dose of fentanyl that she purchased illicitly after asking two people for the…