The young sons of Kouri Richins, a Utah author, said ahead of her sentencing hearing Wednesday that they would feel unsafe if their mother was ever released from prison after she was found guilty in March of killing their father. Richins, 35, faces several decades to life in prison on five felony convictions, including aggravated murder. Prosecutors said Kouri laced her husband Eric Richins’ cocktail with five times the lethal dose of fentanyl in 2022 at their home near the ski town of Park City. She then published and promoted a children’s book about a boy coping with the death of his father shortly before her arrest in 2023. Richins’ attorneys declined to comment Tuesday before her sentencing hearing, which falls on the day her husband would have turned 44. The statements from their sons, who were ages nine, seven and five when their father died, came in a memo from prosecutors urging Judge Richard Mrazik to sentence Richins to life without parole.…