The Tulsa Police Department said that once they arrived on the scene, paramedics and Tulsa firefighters were already performing CPR to the 9-year-old stabbing victim.

“Officers learned the children's parent was upstairs asleep when the 12-year-old daughter woke the parent up and said that she had stabbed her 9-year-old brother," the Tulsa Police Department said. “The 9-year-old male victim was rushed to the hospital and taken into surgery. Unfortunately, he succumbed to his injuries shortly aft