Federal investigators are examining new evidence and pursuing multiple lines of inquiry in the death of 18-year-old Florida cheerleader Anna Kepner, whose body was discovered aboard the Carnival Horizon on November 7.

Newly released court filings and investigative details that Kepner died from asphyxiation have revealed a significant shift with relatives of Kepner suggesting that one of her stepsiblings is now a "suspect," according to multiple ABC News reports.

Newsweek reached out to the FBI, the Medical Examiner and attorneys for the family for comment via email outside normal office hours on Monday.

Why It Matters

Federal investigators and officials have publicly released little about how the 18-year-old Kepner died while aboard the Carnival Horizon , but a recently surfaced

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