(CBS/AP) Police are investigating an 11-year-old girl's death from an undiagnosed, treatable form of diabetes after her parents chose to pray for her rather than take her to a doctor.
An autopsy showed Madeline Neumann died Sunday of diabetic ketoacidosis, a condition that left too little insulin in her body, Everest Metro Police Chief Dan Vergin said.
She had probably been ill for about a month, suffering symptoms such as nausea, vomiting, excessive thirst, loss of appetite and weakness, the chief said Wednesday, noting that he expects to complete the investigation by Friday and forward the results to the district attorney.
Vergin says they're still just beginning to determine if the course of action the parents took was reasonable, or if more could have been done to save their daughter, reports CBS News affiliate WSAW-TV in Wasau.
"Our job is to determine the facts and send them to the District Attorney," said Vergin. “If there were criminal charges, it would likely be negligent homicide, but we're far from that point yet."
In a posting on the Web site, UnleavenedBreadMinistries.org, David Eells that he was contacted by a ministry elder Saturday, March 22 saying Dale and Leilani Neumann requested that he pray for their daughter, Madeline
Eells says he called them that night, the first time he had spoken to the Neumanns outside of a few e-mails over the past few years.
Also in the posting, Eells says the Neumanns told him the girl started getting sick in the past day - not over the course of 30 days, reports WSAW-TV.
Leilani Neumann said that she and her family believe in the Bible and that healing comes from God, but that they do not belong to an organized religion or faith, are not fanatics and have nothing against doctors.
She insisted her youngest child, a wiry girl known to wear her straight brown hair in a ponytail, was in good health until recently.
We know we did the best for our daughter we knew how to do.
Leilani Neumann"We just noticed a tiredness within the past two weeks," she said Wednesday. "And then just the day before and that day (she died), it suddenly just went to a more serious situation. We stayed fast in prayer then. We believed that she would recover. We saw signs that to us, it looked like she was recovering."
Her daughter - who hadn't seen a doctor since she got some shots as a 3-year-old, according to Vergin - had no fever and there was warmth in her body, she said.
Dale Neumann, a former police officer, said he started CPR "as soon as the breath of life left" his daughter's body.
Family members elsewhere called authorities to seek help for the girl.
"My sister-in-law, she's very religious, she believes in faith instead of doctors ...," the girl's aunt told a sheriff's dispatcher Sunday afternoon in a call from California. "And she called my mother-in-law today ... and she explained to us that she believes her daughter's in a coma now and she's relying on faith."
The dispatcher got more information from the caller and asked whether an ambulance should be sent.
"Please," the woman replied. "I mean, she's refusing. She's going to fight it. ... We've been trying to get her to take her to the hospital for a week, a few days now."
The aunt called back with more information on the family's location, emergency logs show. Family friends also made a 911 call from the home. Police and paramedics arrived within minutes and immediately called for an ambulance that took her to a hospital.
But less than an hour after authorities reached the home, Madeline - a bright student who left public school for home schooling this semester - was declared dead.
She is survived by her parents and three older siblings.
"We are remaining strong for our children," Leilani Neumann said. "Only our faith in God is giving us strength at this time."
The Neumanns said they moved from California to a modern, middle-class home in woodsy Weston, just outside Wassau in central Wisconsin, about two years ago to open a coffee shop and be closer to other relatives.
Leilani Neumann said she and her husband are not worried about the investigation because "our lives are in God's hands. We know we did not do anything criminal. We know we did the best for our daughter we knew how to do."
© MMVIII, CBS Interactive Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.