Anna Kepner murder: 16-year-old stepbrother charged with killing of Florida teenager during family cruise trip

Anna Kepner was an 18-year-old student from Titusville, Florida, whose death during a family cruise in 2025 led to a federal murder case involving her 16-year-old stepbrother.Kepner was a high school senior at the time of her death. She was known to be active in school activities, including cheerleading, and had been making plans for her future after graduation. Family members described her as close to her siblings and looking ahead to the next stage of her life.She died in November 2025 while travelling with family members on a cruise ship operated by Carnival Cruise Line. The trip was meant to be a holiday, but it turned into a criminal investigation after she was reported missing on board.Her body was later found inside the cabin she shared with her stepbrother and another sibling. She had been hidden under a bed. A medical examination determined that the cause of death was mechanical asphyxiation.Because the incident took place on a cruise ship, the case fell under US federal jurisdiction. Federal authorities, including the FBI, took over the investigation. Early details were limited, but court filings unveiled the sequence of events and the charges.Her 16-year-old stepbrother was identified by investigators as the main suspect. Due to his age, his name has not been publicly released. He was later arrested and charged in connection with Kepner’s death.In 2026, a federal grand jury formally indicted him 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 attention because of the circumstances surrounding the death, including that it took place within a family setting and on a cruise ship. It has also raised questions about how serious crimes involving minors are handled in the federal system.