As with many of the Scarcella convictions under examination, Wagstaffe and Connor were convicted on the word of a police informant — a crack-addicted prostitute who had to be forced to testify at trial. The woman, identified as Brunilda Capella in Wednesdays' ruling, died many years ago. But she provided a key detail that prosecutors used to define their case. Capella said she saw Wagstaffe and Connor haul Jennifer Negron into a Buick known around the neighborhood. When cops found the car, they also found a headband on the backseat. It had belonged to the dead girl, prosecutors claimed.