An examination of the dog found dead along with actor Gene Hackman and his wife in their Santa Fe home shows dehydration and starvation were likely what led to the animal’s demise.

A report obtained by The Associated Press from the state Department of Agriculture’s veterinary lab details partial mummification and noted that while the severe decomposition could have obscured changes in the organs, there was no evidence of infectious disease, trauma or poisoning that could have resulted in death.

The report noted that the dog’s stomach was mostly empty except for small amounts of hair and bile.

The kelpie mix named Zinna was one of the couple’s three dogs.

It was found dead in a crate in a bathroom closet near Betsy Arakawa’s body, while two other dogs survived.

Authorities confirmed last week that Hackman died of heart disease with complications from Alzheimer’s disease about a week after a rare, rodent-borne disease — hantavirus pulmonary syndrome — took the life of his wife.

Hackman was found in the home’s entryway, and Arakawa was found in a bathroom.

Like the dog, their bodies were decomposing with some mummification, a consequence of body type and climate in Santa Fe’s especially dry air at an elevation of nearly 2200 metres.

While both deaths were ruled to be from natural causes, the Santa Fe County Sheriff’s Office is finishing up the investigation by tying up the timeline with any information gleaned from the cellphones collected at the home and last contacts that were made.

“The case is considered active until we have that information to tie up the timeline,” said

Denise Womack Avila, a spokesperson for the sheriff.

Zinnia went from being a returned shelter dog to an incredible companion that was always at Arakawa’s side, said Joey Padilla, owner of the Santa Fe Tails pet care facility that was involved in the surviving dogs’ care.

The pair led a private life after moving to Santa Fe decades ago.

A representative for the couple’s estate has cited that privacy in seeking to block the public release of autopsy and investigative reports related to their deaths, especially photographs and video.

It will be up to a state district judge to consider that request.