The younger Hall was taken to Fort Logan Hospital in Stanford, but left and has not been seen despite extensive searches by police. He faces charges of wanton endangerment and assault.
Crane testified that the fight started after her 15-year-old son told her that he had seen David Hall steal about 150 Klonopin tablets from Crane earlier that day, and take about 30 of them. Klonopin is used to treat anxiety, seizures and emotional disorders.
After Crane told Bobby Hall about the alleged theft, he confronted David Hall, she testified. A fight ensued, during which David Hall allegedly pulled the butcher knife and eventually backed Bobby Hall into a corner. Crane's 15-year-old son tried, and failed, to break up the fight.
Crane testified that she didn't see her brother stab her son, but thought it was justified.
"I couldn't really see," she said. "I was busy on the phone with the cops. I do believe my brother acted in self-defense."
David Hall, she said, is 6 feet 2 inches and weighs 240 pounds. Bobby Hall is about 5-foot-5 and 130 pounds.
In his written statement for police, Bobby Hall said that he reached around and stabbed David Hall while they struggled in close quarters in a corner of Crane's living room.
After hearing the testimony, Judge Oliver ruled that there was sufficient evidence to refer the case to the grand jury.
Bobby Hall has been in custody at the Lincoln County Regional Jail since his arrest, unable to post bond.
The ruling devastated Crane and Lisa Hall, Bobby Hall's wife, who were hoping he would be released in time for Christmas.
"He's got a little boy at home waiting for him," Lisa Hall, 30, said after the hearing. The Halls have a son, Caleb, who is 4.
"Caleb, he's got speech problems," Lisa Hall said. "He can't say too much, but he can say, 'Daddy come home.' I thought today would turn out, but it didn't."