Family spokesman Jesse Derris wouldn't provide details Wednesday about where Johnson's body would be taken. Johnson's father is New York Jets owner Robert Wood "Woody" Johnson.
Derris says Casey Johnson, who was found dead Monday in Los Angeles, will be laid to rest later this week.
An autopsy conducted Tuesday was inconclusive and toxicology tests have been ordered. The 30-year-old had insulin-dependent diabetes since childhood, but it wasn't immediately clear whether that played a role in her death.
A statement from the family says a memorial fund has been set up by the Juvenile Diabetes Research Foundation.
