EXCLUSIVE: Carmen Lauber, the housekeeper who sold 'Moscow mule killer Kouri Richins fentanyl used to poison her husband,' claims she's having an emotional breakdown and fears she'll 'crumble on the stand' | Daily Mail Online

Carmen Lauber, 51, worked for the Richins family and allegedly sold Kouri Richins the fentanyl she used to poison her husband.