The 16-year-old stepbrother has been named a suspect in the death of 18-year-old Anna Kepner, court documents show.

Kepner, from Brevard County, was found dead on a Carnival cruise.

She was a student and cheerleader at Temple Christian School in Titusville. The FBI has been investigating her death without disclosing any findings or the cause of death.

New details

The new information comes from a court document filed in the divorce case of Kepner's stepmother, who was on the cruise with her.

The document states, "An extremely sensitive and severe circumstance has arisen wherein the Respondent/Mother will not be able to testify at the hearing at this time."

It further notes that Kepner was on the cruise with her stepmother and her minor children, adding, "She has been advised through d

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