ALBUQUERQUE, N.M. — Authorities on Tuesday released a lengthy investigation report detailing some of the last emails and internet searches done by Gene Hackman's wife in the days before her death, indicating that she was scouring the internet for information on flu-like symptoms and breathing techniques.

Betsy Arakawa died in February of hantavirus pulmonary syndrome — a rare, rodent-borne disease that can led to a range of symptoms that include flu-like illness, headaches, dizziness and severe respiratory distress, investigators have said. Gene Hackman is believed to have died about a week later of heart disease with complications from Alzheimer's disease.

The partially mummified remains of Hackman, 95, and Arakawa, 65, were found in their Santa Fe home on Feb. 26, when maintenance and security workers showed up at the home and alerted police.

According to the report released Tuesday, a review of the open bookmarks on Arakawa's computer Feb. 8 and the morning of Feb. 12 indicated she was actively researching medical conditions related to COVID-19 and flu-like symptoms. The searches included questions about whether COVID could cause dizziness or nosebleeds.

She also had mentioned in an email to her masseuse that Hackman had woken up Feb. 11 with flu or cold-like symptoms but that a COVID test was negative and she would have to reschedule her appointment for the next day ''out of an abundance of caution.''

Arakawa's last search was the morning of Feb. 12 for a health care provider in Santa Fe.

Investigators also reviewed a call history to the Hackmans' home phone along with voicemails and security footage from stores that Arakawa had visited on Feb. 11.

Authorities also are expected to release more redacted police body camera footage from inside the home as sheriff's deputies and investigators tried to piece together what had happened to the couple. The written report describes them going through rooms of the home and finding nothing out of the ordinary and no signs of forced entry.

The materials were being released as the result of a recent court order that mandated any depictions of the deceased couple would have to be blocked from view. All photos, video and documents from the investigation had been restricted from release by an earlier, temporary court order.

The Hackman estate and family members had sought to keep the records sealed to protect the family's constitutional right to privacy.

A report obtained from the New Mexico Department of Health showed an environmental assessment of the Hackman property found rodent feces in several outbuildings but not inside the living quarters. A live rodent, dead rodent and a rodent nest were found in three detached garages.

Nestled among the piñon and juniper hills overlooking Santa Fe, the Hackman home is not unlike others in area as mice are common within the surrounding landscape.

One of the couple's three dogs also was found dead in a crate in a bathroom closet near Arakawa, while two other dogs were found alive. A state veterinary lab tied the dog's death to dehydration and starvation.

An attorney for the estate, Kurt Sommer, argued during a hearing last month that the couple had taken great pains to stay out of the public light during their lifetimes and that the right to control the use of their names and likenesses should extend to their estate in death.

Estate representative Julia Peters also emphasized the possibly shocking nature of photographs and video in the investigation and the potential for their dissemination by media.

The Associated Press, CBS News and CBS Studios intervened in the matter, saying in court filings that they would not disseminate images of the couple's bodies and would blur images to obscure them from other records.