Dominique Dunne

Dominique Ellen Dunne (November 23, 1959 – November 3, 1982) was an American actress. She was born in Santa Monica, California. Her parents were Dominick Dunne and Ellen Griffin Dunne. She was best known for her role as Dana Freeling in the 1982 horror movie "Poltergeist".
On October 30, 1982, Dunne was strangled by her ex-boyfriend, John Thomas Sweeney, in the driveway of her Los Angeles home. She went into a coma and died five days later, aged 22. Sweeney was convicted of voluntary manslaughter in Dunne's death and went to prison for three and a half years.