Her 9-year-old sister Brailey and their twin 2-year-old half-sisters Brooke and Jordan sustained fatal gunshot wounds during the incident. In a devastating update, Olivia's stepmom revealed that ...

Sisters Brailey and Olivia Blackmer, 9 and 7, respectively, were the closest of friends. They split their time between Utah and Wyoming. In Utah, they stayed with their father and stepmother ...