He said Marlise had been very ill and he hadn't seen her outside in a while. Walker said the couple didn't have any children and enjoyed traveling.
He said he couldn't imagine Dr. Foster owning a gun.
He said the couple was well off but lived modestly. The doctor was an engineer before opening his practice. Walker said many residents in the area were patients of Foster.
Dr. Foster was a native of Wilmington, Del., and moved to West Virginia after medical school at Jefferson Medical College in Philadelphia. He worked for a time at Union Carbide but retired when the plant began downsizing and opened a family practice at Thomas.
He was a supporter of living wills and medical power of attorney documents, according to an online biography on Zoom Info, a business profile site. He also authored a book titled "Death and Dying, or Can You Love Me Enough to Let Me Go?"
Known for his lectures on end-of-life care, he often referred to death as "graduation," according to the online biography.
"We have to start thinking that it's not necessarily the end, that it may be the beginning of something," he told the Gazette in a 2004 interview.
He also served as the director of palliative care services and was the medical adviser for the West Virginia Center for End-of-Life. He spoke frequently at seminars, continuing educational programs and on local radio shows.
The investigation is ongoing.
Contact writer Ashley B. Craig at ashley.cr...@dailymail.com or 304-348-4850.