In the aftermath of their deaths, the New Mexico Department of Public Health discovered multiple nests and dead rodents in several outbuildings on their property. The investigation revealed that Ms. Arakawa, who was 65, succumbed to a respiratory illness attributed to hantavirus, a disease transmitted through infected rodents. Mr. Hackman, 95, was reportedly in advanced stages of Alzheimer's when he passed away about a week later.

The environmental assessment conducted on March 5 found alarming evidence of rodent activity, including feces and nests in garages and external structures. Health officials noted that while the primary residence was clear of rodent signs, the proximity of the outbuildings raised concerns over potential health hazards. Authorities concluded that Ms. Arakawa likely contracted hantavirus pulmonary syndrome (HPS), a condition that can manifest rapidly with severe respiratory symptoms and has a high mortality rate. The Centers for Disease Control and Prevention (CDC) noted that the majority of hantavirus cases in the U.S. were reported in rural areas, emphasizing the health risks of rodent interactions.

These developments have shed light on the possible circumstances leading to the couple's abrupt deaths and raised awareness about the dangers associated with hantavirus and its transmission. Medical experts suggest that the advanced Alzheimer's disease affecting Mr. Hackman may have hindered his awareness of his wife’s passing.

This harrowing incident has caught media attention, fostering discussions surrounding disease prevention, wildlife management, and the essential need for awareness of environmental health threats.