Court documents reveal 18-year-old Anna Kepner of Titusville was found asphyxiated under a bed aboard the Carnival Horizon. The death has intensified a custody battle between her stepmother, Shauntel Hudson, and Hudson’s ex-husband. A subpoena orders Anna’s father, Christopher Kepner, to appear in court today. Authorities have identified Anna’s 16-year-old stepbrother as a suspect, and the FBI is investigating.