On January 26, 2002, two people were discovered brutally murdered inside an apartment on Brunswick Road in Troy, New York. The victims were Arica Lynn Schneider, an 18-year-old Troy native, and her boyfriend, Samuel “Frost” Holley, 27.Their deaths launched an investigation that would span years, implicate two men who were ultimately cleared, and expose the extraordinary importance of forensic DNA evidence.For years, investigators pursued a theory that the killings were connected to a robbery targeting a drug dealer. But a DNA match eventually pointed them in another direction, changing the course of the case and leading to the conviction of Michael Mosley.This is a story about two lives lost, an investigation that went badly off course, and the evidence that ultimately brought a killer to justice.