Authorities have not ruled out that Gene Hackman, his wife, and a family dog were fatally poisoned by carbon monoxide or gas leak in their New Mexico mansion. Santa Fe’s fire chief told Today on Friday there were no signs of toxic gas when first responders arrived at the actor’s estate on Wednesday,

Hackman, 95, was found in an entryway after having apparently "suddenly fallen," the affidavit said, while Arakawa, 65, was discovered on her side in the bathroom, with a kenneled German shepherd dead nearby in a bathroom closet.

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.