Alzheimer's disease had on her father. Days after his death, she spoke in front of the US House of Representatives to raise awareness of the horrors of the disease.
As reported by United Press International at the time, she said: "Ironically, a man who once could hold an audience in the palm of his hand, towards the end, had great difficulty expressing even his most basic feelings. "Edmond O'Brien died at the age of 69 in a specialised hospital in Inglewood, Los Angeles.
The star is perhaps best remembered for his role as Winston Smith, the main character, in the film version of George Orwell's 1984.
Over his life, he featured in over 60 films, which resulted in his name etched into the Hollywood Walk of Fame. READ MORE: Monkeypox symptoms: Expert warns early signs might be 'easy to miss' - what to look forAt the hearing, Maria O'Brien emphasised that her father's fate was like that of "many unfortunate victims" of Alzheimer's disease.
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