When Brandi Peters and her three children were found murdered in Tallahassee in 2010, prosecutors pointed the finger at her ex-boyfriend, Henry Segura, who owed her more than $20,000 in child support. But as the trial got underway, an imprisoned drug dealer came 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, but DNA evidence found in her bedroom came back as a possible match to a Colombian cocaine trafficker.