'Black widow' guilty of murdering husband with lethal dose of fentanyl to inherit £3m estate

A woman who wrote a children's book about coping with grief after the loss of her husband has been found guilty of his murder.

Kouri Richins slipped five-times the lethal dose of fentanyl into a cocktail that Eric Richins drank in the false hope of inheriting his estate worth more than $4m (£3m) in Utah in March 2022, prosecutors said. They said Richins, an estate agent, was deep in debt and planning her future with another man.

She had opened numerous life insurance policies on her husband without his knowledge, with benefits totalling about $2m, prosecutors said. The internet search history from Richins's phone included "what is a lethal.dose.of.fetanayl" and "luxury prisons for the rich America.