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 both tested negative for carbon monoxide after their deaths, Adan Mendoza, the sheriff of Santa Fe County in New Mexico, said at a press conference on Friday, Feb. 28.

"I think the autopsy results, the official results, are going to help us steer us in the right direction," the sheriff said in an interview on Friday.

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 the gas as a cause of Hackman and Arakawa’s death, Sheriff Adan Mendoza said in a press conference on Friday.

Gene Hackman's pacemaker revealed his "last event" took place on Feb. 17, nine days before his body was discovered with wife Betsy Arakawa on Wednesday, Santa Fe County Sheriff Adan Mendoza revealed in a Friday press conference.

Santa Fe County Sheriff Adan Mendoza told reporters at a Friday afternoon press conference that Hackman’s pacemaker last recorded an event on Feb. 17, though that doesn’t mean the pacemaker was implicated in his death.

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