The youngest daughter in the movie died from a ruptured appendix, I believe that was it.
was she the one related to the author dunne?
Dominique Dunne (sister of actor Griffin Dunne and daughter of writer Dominick Dunne) was murdered by her ex-boyfriend in 1982, at age 22. The killer, John Thomas Sweeney, served 2 1/2 years.
For years, Dominick Dunne retained a private investigator to track Sweeny’s post-relase activities. He gave it up, realizing that it didn’t do anyone any good. Dunne hasn’t said, but I strongly suspect, that his daughter’s murder led him to take up true crime writing. His fictionalized account of Martha Moxley’s murder, followed by Mark Fuhrman’s investigation, led to the re-opening of the case and put Michael Skakel in prison for 20 to life.
But I digress.
Heather O’Rourke, who played the youngest daughter, died at age 12 of cardiac arrest brought on by complications from Crohn’s Disease.