Brandi Peters and her three children are found murdered in Tallahassee in 2010. Prosecutors point the finger at her ex-boyfriend, Henry Segura, who owed her more than $20,000 in child support. But as the trial gets underway, an imprisoned drug dealer comes forward, saying he had ordered the murders from prison, that Peters had worked as a drug mule and helped herself to more than $90,000 worth of drugs and cash. It sounded like an outlandish claim.