As New Mexico authorities begin their investigation into the deaths of actor Gene Hackman and his wife, classical pianist Betsy Arakawa, it sounds like authorities have already begun collecting some evidence that could prove key to determining what happened.

Officials found the couple dead in their Santa Fe home nearly one week ago in what detectives have called “suspicious” circumstances. According to a search warrant inventory list obtained by Fox News, authorities obtained two cellphones, an orange prescription bottle and a 2025 planner while inspecting the residence.

As former FBI investigator Bill Daly explained in an interview with Fox News Digital, these pieces of evidence could prove crucial in determining what happened to Hackman and his wife.

“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 told Fox News Digital.

“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,” he said.

“Toxicology – there could have been some other type of poisoning, possibly food? They’ll go through their trash, fridge … this is stuff the police can do in the meantime while gathering evidence. There are a number of possibilities.”

Officials have already confirmed that no external trauma was seen on either Hackman or Arakawa and both tested negative for carbon monoxide.

It’s also worth noting that Santa Fe County Sheriff Adan Mendoza confirmed that the last recorded activity on Hackman’s pacemaker occurred on Feb. 17, leading authorities to believe that was his last day alive – nine days before his body was discovered.

The case is currently open pending autopsy and toxicology results.