Movie fans were horrified last week when Hollywood legend Gene Hackman and his wife Betsy Arakawa were both found dead in their New Mexico home.

While the couple's passing has not been attributed to foul play, new evidence may offer insight into the cause of their deaths. 

No signs of external trauma or carbon monoxide leak

That's according to Fox News, which reported on Tuesday that detectives say there are "suspicious" circumstances surrounding the case.

Police have recovered a pair of cell phones from the scene along with an orange prescription bottle and a 2025 date planner. One of the couples' dogs was also found to be deceased.

Neither Hackman nor Arakawa showed signs of external trauma and no evidence of a carbon monoxide leak or poisoning has been observed. However, the case remains open pending an autopsy and toxicology results.

Bill Daly is a former FBI investigator, and he told Fox News that electronic information could provide important clues concerning the demise of Hackman and Arakawa.

Pacemaker may indicate time of Hackman's death

"After receiving the cell phones, investigators can determine when they stopped moving, when they lost communication, which can tell the time of disablement or death," Daly explained.

The former law enforcement official also explained that authorities will be reviewing when Hackman's pacemaker stopped working to ascertain the time of his death.

"They can do geolocating around the property to see what was pinging around that time, though they won't be able to tell who without a warrant, but can tell what activity there was before and afterward, even if they're not suspecting foul play," Daly added.

What's more, Daly suggested that police will "take a look at the surrounding community" to see "if there was movement in and out of the property after they passed away."

Crime scene analyst points to condition of Arakawa's body

Peter Valentin is certified senior crime scene analyst, and he was curious about reports that Arakawa's body exhibited bloating on as well as face and mummification in her hands and feet.

"There was something about the way that his wife was described in the bathroom that I think is worth looking into a bit more," Valentin told Fox News.

"And she was in the bathroom. I guess there was a space heater, and there were some pills that seemed to be strewn, and I don't know where, if that space heater was turned on. That might change the way her decomposition looks," he theorized.

"Mummification occurs when you have heat and low humidity, and so that's exactly what you'll get when you have a body decomposing next to a source of heat, like a heater or like a radiator," Valentin remarked.