In Chapter Four of Chasing a Ghost, Kathy Sweeney reveals how the 1998 murders of Sherri and Megan Scherer were linked to a 1997 Memphis home-invasion sexual assault... after an untested rape kit sat for years before finally generating a CODIS hit. As investigators race to identify the unknown suspect, the case becomes one of the early multi-state breakthroughs powered by investigative genetic genealogy. Genetic genealogist CeCe Moore’s work leads authorities to Robert Eugene Brashers, and a 2018 exhumation confirms the DNA match—finally naming the killer and opening the door to even more victims.