Casey Johnson Finally Laid to Rest

Immediate family and friends gather for funeral of Johnson & Johnson heiress

Casey Johnson's loved ones may still be quarreling, but at least the socialite herself is now resting in peace.

The Johnson & Johnson heiress has finally been laid to rest in a quiet, private service attended by family and close friends, sources confirm to E! News.

Unsurprisingly, bickering past loves Courtney Semel and Tila Tequila, who erroneously tweeted that Johnson had been buried over the weekend, were not among those present for the burial, which was expected to take place at the Johnson family's plot in New Brunswick, N.J.

Last week, the Johnson family asked for privacy as they mourned the sudden death of the 30-year-old and requested that those doing the same make donations to the Casey Johnson Memorial at the Juvenile Diabetes Research Foundation International.

Johnson was found dead last Monday, and while the coroner said no foul play was suspected, her cause of death won't be announced for up to eight weeks, pending the results of her toxicology tests.

Last Tuesday, an equally intimate memorial was held in Los Angeles at Nicky Hilton's house. Paris Hilton, Bijou Phillips and Nicole Richie were among the mourners.