NEWYou can now listen to Fox News articles!

The stepbrother of 18-year-old Anna Kepner, who was found dead in her cabin on a cruise ship in November, has been charged with homicide, according to court documents related to a separate family matter.

In a Feb. 20 emergency divorce court petition, Thomas Hudson petitioned his ex-wife Shauntel Hudson, the mother of the couple's nine-year-old daughter, for full custody of their daughter. Shauntel and her husband, Christopher Kepner, Anna's father, currently have primary custody of the child.

The petition, which cites "social media from the Kepner family," says that Anna's teenage stepbrother was charged with homicide by the U.S. Attorney in the Southern District of Florida on Feb. 3. The petition does not name the stepbrother.

Anna Kepner wearing a black top and jean shorts while sitting at a beach parking lot

Anna Kepner, 18, was found dead aboard a Carnival cruise ship on Nov. 7, during a vacation with her family.  (Anna Kepner/Instagram)

CLICK HERE TO DOWNLOAD THE FOX NEWS APP

This story is developing. Please check back for updates.