Well we may not know who Casey was, but we all know who Johnson and Johnson is as most of us purchase their products somewhere along in our lives. 
This is sad story as she was only 30 years old, but talk had it that she had been dis-owned from benefiting from any inheritance.
This site published some of the nice things about her and accomplishments, such as being an author, but we never heard much of that on the news but rather all the gossip and socialite stories on the news. She battled diabetes as a child and wrote a book about it. BD
(PEOPLE.com) -- 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."'
Los Angeles police and firefighters were called to a house at 11:51 a.m. Monday. Johnson was pronounced dead at the scene.
An openly gay socialite, Johnson had a knack for attracting paparazzi -- and trouble. A nasty fight with ex-girlfriend Courtenay Semel, daughter of former Yahoo chief Terry Semel, reportedly resulted in Johnson's hair catching on fire last October. Then in November, she was arrested for allegedly breaking into another former girlfriend's house.
Johnson & Johnson heiress Casey Johnson dead at 30 - CNN.com