Anna Kepner's Grandparents Talk About Her Death And Her Stepbrother

The grandparents of the teenager found dead during a Caribbean cruise spoke out in an interview with ABC News. They confirmed Anna Kepner's 16-year-old stepbrother was sharing a stateroom where she died. They say the FBI told the family Kepner was choked to death, possibly with a bar hold maneuver. Kepner spent her last evening with her grandparents in the casino aboard the Carnival Horizon cruise ship. The next morning, they heard a chilling announcement.