PLEASE LISTEN TO ‘SEASON 9 - EPISODE 48’ FOR PART ONE OF THIS THREE-PART CASE. The murders of several women in Scotland in the 1970s went unsolved. During a case review into the 1978 murder of 17-year-old Mary Gallacher in 2000, a suspect was identified through DNA comparison. He was arrested and brought to trial (Part 2 of 3)…