ANNETTA SOUTH (CBSDFW.COM) – Authorities in Parker County said that 17-year-old Jake Evans has been arrested and will be charged with capital murder in connection with the shooting deaths of his 48-year-old mother and 15-year-old sister.
Deputies from the Parker County Sheriff's Office responded to a 911 call early Thursday, just after midnight, in the 100 block of River Creek Lane, in Annetta South. The caller reportedly identified himself as Jake Evans and told officials that he had just shot his mother, who was later identified as Jamie Evans, and his sister, who was not identified.
"Of course the 911 operator here at our center immediately dispatched the Sheriff's Office out here and kept the caller on the line for a good 20 minutes while the officers were enroute," Parker County Sheriff Larry Fowler explained.
Once at the scene deputies found the two bodies and a cooperative suspect.
"He complied with the instructions he was given over the phone by the 911 person here at our center and went out with his hands visible, met with the deputies and was taken into custody," Sheriff Fowler said.
The suspect's father was out of town at the time of the killings, authorities said.
According to officials, the teenager told the arresting deputies that he used a .22-caliber revolver to carry out the murders. According to a police affidavit, upon searching the house a .22 caliber revolver was found on the kitchen table. Evans is still being interviewed by authorities.
While officials believe Evans acted alone, saying there is "no evidence implicating additional suspects," they don't know why the boy killed his family members.
Sheriff Fowler said, "We're still trying to make sense of it. Don't ask me what a motive is because I don't know."
Parker County officials say both Jake Evans and his younger sister were home schooled.
Additional details about the exact injuries and cause of death of the mother and daughter won't be known until the Tarrant County Medical Examiner's Office completes a full autopsy.