Casey Johnson’s Cause of Death Revealed

The Los Angeles Coroner's office has determined the cause of death of Johnson & Johnson heiress Casey Johnson, who passed away last month.

The coroner says Johnson's autopsy revealed that she died of diabetic ketoacidosis and that the manner of death was natural. Diabetic ketoacidosis is a complication of diabetes that occurs when the body does not have insulin or enough insulin. When this happens, fat is used instead, thus causing byproducts of fat breakdown, called ketones, to build up in the body.

Johnson passed away on January 5 of this year at the young age of 30.