Coroner: Casey Johnson Died of Natural Causes

Casey Johnson died of natural causes, the Los Angeles coroner has ruled.

The specific cause of death was “diabetic ketoacidosis,” a condition caused by a shortage of insulin, according to a coroner statement.

The Johnson & Johnson heiress, 30, who recently got engaged to reality TV star Tila Tequila, was found dead in her L.A. home on Jan. 4.

Johnson had suffered from severe diabetes since childhood.

Tila Tequila Talks about Her Romance with Casey Johnson

Tila Tequila is stepping back from Twitter and opening up about her memories of Casey Johnson, to whom the reality star, 28, was engaged in the weeks leading up to the heiress’s shocking death at age 30.

“I’m trying to remember what’s good,” Tequila told PEOPLE in an exclusive interview Monday. “She was such a loving and beautiful person. I want people to remember her as that.”

Casey Johnson 911 Tape: 'She's Ice Cold'

The moment the woman saw Casey Johnson in her guesthouse, she knew she was dead.

“She’s ice cold and her hands are turning blue,” the woman says, according to a tape of the 911 call. “I have two other people with me and we all think she’s dead.”

The caller, who was not identified, tells the emergency operator that the body of the 30-year-old woman is “in my guesthouse, so I need somebody right away.”

The woman is asked if she thinks it was a suicide.

Tila Tequila: Don't Blame Me for Casey's Johnson's Death

Tila Tequila is defending herself on the Internet, fighting off claims she ignored warning signs in the days leading up to Casey Johnson’s death

“I was the ONLY one who was constantly checking on my Wifey cuz I knew something was wrong,” she wrote on Twitter on Thursday. “I was out of town 2 meet my Brother. I have all the text messages to prove it!”

Casey Johnson Pal Takes a Shot at Tila Tequila

First grief, and now anger.

Casey Johnson’s longtime girlfriend Courtenay Semel has broken her silence after the heiress’s death to lash out at another woman close to Johnson – reality star Tila Tequila.

“The thing I find the most sickening is that the media is giving [her] the one thing she craves: attention. Tila, you knew her for a week,” Semel tells PEOPLE.

Private Funeral Set for Heiress Casey Johnson

Casey Johnson, the 30-year-old Johnson & Johnson heiress who was found dead, will be laid to rest later this week in a private funeral attended by immediate family.

The Johnson family wishes to thank everyone who has expressed condolences and support during this trying time,” says family spokesman Jesse Derris. “Your thoughts and prayers are deeply appreciated.

The socialite’s family has arranged for her body to be “flown back east to her final resting place,” Derris says. No other details were announced.

Johnson & Johnson Heiress Casey Johnson Dies

Casey Johnson, the heiress to the Johnson & Johnson fortune who recently made tabloid headlines with a purported engagement to reality star Tila Tequila, has died at age 30.

Her death was announced by Tequila on her Twitter page and confirmed by police.

“Everyone please pray 4 my Wifey Casey Johnson,” Tequila wrote. “She has passed away. Thank u for all ur love and support but I will be offline to be w/ family.”’