SGranitz/WireImage Authorities believe that Gene Hackman's pacemaker is shedding some light on the date of his death. "Both individuals tested negative for carbon monoxide, [and] an initial interrogation was conducted of Mr.

Santa Fe County Sheriff Adan Mendoza shared some insight into the possible timeline of Gene Hackman and his wife Betsy Arakawa’s deaths and the authorities' investigation on the 'Today' show on Friday,

"Both individuals tested negative for carbon monoxide," Santa Fe Sheriff Adan Mendoza shares at a Friday press conference

Currently, authorities have not determined who died first, as autopsies are being conducted to establish the cause of their deaths.

"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.

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.

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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