Prosecutors said Kouri Richins killed her husband, Eric Richins, in 2022 by serving him a cocktail laced with five times the lethal dose of fentanyl -- allowing her to inherit $4 million and get another $2 million from life insurance policies she secretly took out on him.

Kouri Richins was convicted in March of aggravated murder for lacing her husband's cocktail with five times the lethal dose of fentanyl

After she killed her husband with a fentanyl-laced cocktail, Kouri Richins wrote a children’s book about grief using a ghost writer, prosecutors said.

Prosecutors said Kouri Richins killed her husband, Eric Richins, in 2022 by serving him a cocktail laced with five times the lethal dose of fentanyl -- allowing her to inherit $4…