US investigators are trying to establish how Oscar-winning actor Gene Hackman and his wife, classical pianist Betsy Arakawa, died after the discovery of their bodies at their home in the US state of New Mexico. Here is what we know so far about the death of a Hollywood legend known for such films as The French Connection and The Conversation.

Though he’d had small roles in movies and on television throughout the early 1960s (he’d been a Marine before that, and had studied journalism and television production on the G.I. Bill), Hackman was 36 before anyone really took notice.

Gene Hackman’s daughter believes that carbon monoxide poisoning was responsible for the deaths of the Oscar-winning actor, his wife, and their dog, according to a report. Elizabeth Jean Hackman told TMZ that although the family isn’t positive this is the cause of death,