The New Hampshire attorney general's office says an 87-year-old man with severe Alzheimer's disease attacked an 82-year-old woman at their nursing home, leading to her death.

Attorney General Joseph Foster says authorities responded to the Golden View Health Care Center on March 16.

Authorities learned that the nursing staff had intervened after the man was found assaulting the woman inside her room. The woman died later that day.

An autopsy showed Barbara Whittier's cause of death was hypertensive and coronary heart disease, with a contributing cause of attempted strangulation. The manner of death was homicide.

The man had been a resident at Golden View since the fall. Afterward, he was taken to another medical facility.

Foster says the investigation into Whittier's death is ongoing.