Santa Fe County Sheriff Adan Mendoza said, "We've ruled out carbon monoxide" Gene Hackman and his wife Betsy Arakawa both tested negative for carbon monoxide after their deaths, Adan Mendoza, the sheriff of Santa Fe County in New Mexico,

Authorities in New Mexico continue to investigate the cause of death of actor Gene Hackman and his wife​ Betsy Arakawa, but they say it does not appear to be carbon monoxide poisoning.

Gene Hackman and his wife Betsy Arakawa tested negative for carbon monoxide in the initial results of the toxicology report, leading officials to rule out carbon monoxide as a cause of Hackman and Arakawa’s death, Sheriff Adan Mendoza said in a press conference on Friday.