Go behind the scenes with Correspondent Erin Moriarty and producers Lauren White and Richie Fetzer on a murder case they've been covering for the past four years. In 2020, Amie Harwick was killed by her ex-boyfriend and stalker, Gareth Pursehouse. Now that the case has gone to trial, the 48 Hours team digs into startling evidence from the crime scene, including a syringe filled with nicotine, and new interviews with friends and family who loved Amie.