Overview:Five women have mysteriously vanished from near B.C.'s Shuswap region over a year and a half, leaving their families desperate for some sort of closure. When police suddenly discover a body more than five years later, it leads to an arrest in one of the women's murders. But will it help officers crack the other cases? In the conclusion of the Secrets of Salmon River, reporter Jules Knox investigates why police are struggling to make more arrests.