MILFORD — Nearly three years after an elderly woman was found dead from dehydration and malnutrition, investigators have charged her former caretaker in connection with her death, which was ruled a homicide, according to police.

Michael O’Connell, 64, of East Rutland Road in Milford, was taken into custody Friday on an active warrant for his arrest, charging him with first-degree abuse.

The charges against O’Connell stemmed from an investigation that started almost exactly three years ago on May 16, 2017.

The department got a 211 call around 10:50 p.m. that 2017 evening, requesting a welfare check on “an elderly female for whom Michael O’Connell was the caretaker,” according to police.”

Responding officers found the woman unresponsive. Paramedics pronounced her dead at the scene.

Police said an autopsy ruled that the woman’s manner of death was homicide, while the cause was dehydration and malnutrition “complicating dementia and non-prescribed Amitiptyline and Perphenazine administration.”

An investigation led to the application of an arrest warrant for O’Connell.

After police took O’Connell into custody, he was released on a promise to appear. He was give a June 30 court date.