The brutal murder of 16-year-old Brianna Ghey shocked the world. The trans-teenager was a vulnerable victim, who lived almost her entire life online and found friendship in her thousands of social media followers. Brianna was manipulated by her killers, who posed as friends to lure her to her death. With the two offenders at large, the police investigation moved at speed to uncover shocking evidence of a cold and calculated murder. (thetvdb.com)