When the decomposed body of a teenage girl is discovered in Pennsylvania, police have no clues to her identity. But weeks earlier, stabbing victim Kathy Sagusti told investigators she thought she might have heard a murder taking place in her basement. Investigators eventually discover the identity of the girl as Richezza Williams, a 13-year-old runaway from Long Island, NY. Segusti positively identifies her as the murder victim and that Corey Maeweather, Kwame Henry and Stanley Obas were the murderers. To prove it, investigators turn to bug larvae found on the body and a surprise piece of evidence: a tiny wad of chewing gum found near the victim's body.