In October 1990, a militia attacked her father's home and killed him, his second wife and two of their three young children.

[5] Her autobiography, Au Nom du Pere, centered on her relationship with her father and his life and work.

In it, she recounts the harrowing experience in which she and her mother were kidnapped in 1980 during a surprise attack on the National Liberal Party headquarters by Phalangist militiamen under the command of Bachir Gemayel, her father's former ally.

[citation needed] Chamoun was an outspoken critic of the Syrian occupation of Lebanon.

Chamoun has vowed to continue to remind people of the truth behind the assassination of her slain father which she writes about in her books Le Sang De la Paix published by Lattes in France and (ثمن السلم) published by Antoine in Lebanon.