On a January night in 1995, 18-year-old Christa Pike and two other teenagers lured 19-year-old Colleen Slemmer to a secluded area near the University of Tennessee, Knoxville. They taunted, beat, and slashed Colleen, carving a pentagram into her chest, before Christa picked up a piece of concrete and smashed Colleen’s skull, killing her. Those salacious details stood out during a national Satanic Panic over ritual abuse and suburban cults. The Knoxville News Sentinel later accused Christa of killing “for love and Satan.” She was convicted of first-degree murder and sentenced to death by electrocution—one of the youngest women ever to be sentenced to death in the United States.   Thirty years later, Christa is still alive, incarcerated at a Nashville prison and the only woman on death row in Tennessee. She has spent much of her adult life in solitary confinement. In the decades since the murder, evolving understanding about brain science and trauma have cast Christa’s wildly violent act—and death sentence—in a new light. We now know that the brain of an 18-year-old remains underdeveloped and impulsive. Christa has a horrific history of abuse, violence, and family neglect; the first time she attempted suicide, she was 9 years old. That kind of trauma can arrest healthy development, leading some young adults down a disastrous path.    As Christa approaches her final appeals, a team of state and federal defenders are urgently trying to save Christa’s life. Her date of execution could be set any time. If executed, she will be the first woman killed by Tennessee in almost 200 years. Should a woman who committed a violent crime as a damaged teenager be granted a chance at rehabilitation? And is justice best served through retribution or mercy?