Teen who shared cabin with Anna Kepner faces federal scrutiny in cruise ship death

The stepbrother of a Florida teenager who died aboard a Carnival cruise ship appeared in federal court in Miami on Friday, as investigators continue probing the circumstances surrounding her death.

His appearance in court comes three months after Anna Kepner, an 18-year-old from Titusville, was found dead aboard the Carnival Horizon in November while on a family vacation. 

Kepner's 16-year-old stepbrother was seen leaving juvenile court before entering adult federal court Friday, according to FOX 35.