"Anna was pure energy: bubbly, funny, outgoing, and completely herself. "

That is how Anna Kepner is remembered in her obituary.

The 18-year-old high school student lost her life while traveling with her family on the Carnival Horizon cruise ship in early November.

Her death was later declared a homicide. While there have been no arrests made at this time, court papers filed in the custody proceedings between Anna's stepmother Shauntel Hudson and her ex-husband suggest that Anna's 16-year-old stepbrother is under criminal investigation,

When asked about his estranged stepson's possible involvement in his daughter's murder, Christopher Kepner previously told PEOPLE: "I cannot say that he is responsible but I can’t decline. He was the only one that was in the room and the FBI has an on

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