© El Dorado County Sheriff's Office - A picture of the Miller Twins in their 20'sSOUTH LAKE TAHOE, Calif. (AP) -- Five months after authorities launched an investigation into the mysterious deaths of elderly twin sisters at their South Lake Tahoe home, investigators have concluded both 73-year-olds died of natural causes.
El Dorado County Sheriff's deputies said Thursday that Joan Miller was heavily dependent on her sister, Patricia Miller, for her care and apparently died from hypothermia after Patricia died of coronary artery disease.
Their decomposed bodies found during a routine welfare check on Feb. 26 suggested they'd been dead for several weeks. But deputies were stumped because there was no blood or signs of struggle. They also ruled out carbon monoxide poisoning at the home where the women had lived together for nearly 40 years.
Lt. Tim Becker says they're glad to bring the lengthy investigation to an end.
