NICHOLS HILLS, Okla. (CBS/AP) Stephen Wolf is paid to treat the sick, but police allege that it was Wolf, himself, who needed the help.
Wolf, an Oklahoma doctor, was jailed Monday for murdering his son after officers found the 9-year-old fatally wounded and the child's mother suffering from injuries incurred while trying to defend the boy, police said.
Wolf called his son the devil as he stabbed him, according to The Oklahoman.
The child was a third grader at Christ the King Catholic School, about two blocks from the Wolf home.
Police Chief Richard Mask said the first officers on the scene took a knife away from the 51-year-old Wolf. Mask said the child died soon after police arrived. The mother, Mary Wolf, was treated for puncture wounds to her hands and mouth.
Mask said investigators are trying to determine what prompted the attack.
Video Courtesy The Oklahoman.
Mary Wolf pounded on her neighbor's door for help. The neighbor called 911, and Mary Wolf then went back to her house and called 911 herself.
Stephen Wolf was booked into Oklahoma County Jail. A booking photo showed him with a bloody gash on his forehead that he apparently sustained when he banged against a cabinet as an officer disarmed him, Mask said.
He was being held without bond, and jail officials said they don't know if he has an attorney yet.
A telephone answering service employee said the office Wolf shares with other physicians was closed Monday.
Investigators think the boy was attacked in his room soon before the first 911 call, Mask said.
Wolf is a 1988 graduate of the University of Oklahoma's medical school and a specialist in internal medicine.
Police Chief Richard Mask said that investigators are still trying to get "all the facts together" and that the death has had a "devastating" effect on 4,000-person city. Nichols Hills, an area of large, stately homes, is adjacent to Oklahoma City.