Anna Kepner, an 18-year-old student from Titusville, Florida, was found dead during a family cruise in November 2025, in a case that has since led to federal murder charges against her 16-year-old stepbrother.

Kepner, a high school senior, was known for her active involvement in school life, including cheerleading, and had been planning her future after graduation. Family members described her as close to her siblings and looking forward to the next phase of her life.

The incident occurred aboard a cruise ship operated by Carnival Cruise Line, where Kepner was travelling with family members. What began as a holiday turned into a criminal investigation after she was reported missing during the voyage.

Her body was later discovered inside the cabin she shared with her stepbrother and another sibling. Investigators said she had been concealed under a bed. A medical examination determined the cause of death to be mechanical asphyxiation.

As the incident took place on a cruise ship, it fell under US federal jurisdiction. The Federal Bureau of Investigation (FBI) led the probe, examining ship security records, cabin access logs, CCTV footage, and conducting interviews with passengers and crew.

Authorities identified Kepner’s 16-year-old stepbrother as the primary suspect. Due to his age, his identity has not been publicly disclosed. He was subsequently arrested and, in 2026, formally indicted by a federal grand jury on charges including murder and aggravated sexual abuse.

Prosecutors are seeking to try him as an adult. If convicted, he could face a life sentence.

The case has drawn widespread attention due to the circumstances of the crime—occurring within a family setting and aboard a cruise ship—and has raised broader questions about how serious offences involving minors are prosecuted under federal law.

Court documents indicate that investigators believe the attack took place inside the shared cabin before Kepner was reported missing.