Quid tibi umquam feci 1995 (Latin: What have I ever done to you?) is an electronic painting of convicted murderer Christa Gail Pike, based on Sebastiano del Piombo’s Judith (or Salome?), painted circa 1510.

On January 12, 1995, when she was 18, Pike and her boyfriend, 17-year-old Tadaryl Shipp, brutally tortured and murdered 19-year-old Colleen Slemmer in a wooded area behind an abandoned steam plant on the University of Tennessee's agricultural campus in Knoxville. All three were participants in the Job Corps program and lived at its residence on Dale Avenue. Slemmer was beaten, slashed, and had a pentagram carved into her chest before Pike killed her by crushing her skull with a large chunk of asphalt. Her body was discovered the following morning by two university physical plant employees.

Pike had become convinced that Slemmer, who was studying computer technology through Job Corps at the suggestion of her grandfather, was trying to steal her boyfriend. Along with their friend, 18-year-old Shadolla Peterson, another Job Corps participant, Pike and Shipp lured Slemmer to the abandoned steam plant with an offer to make peace and smoke some cannabis.

Upon arrival at the secluded location, Slemmer was attacked by Pike and Shipp while Peterson acted as lookout. According to court testimony, for approximately 30 minutes, Pike and Shipp taunted, beat, and slashed Slemmer. During the attack, Slemmer begged for her life, asking, “What have I ever done to you?”

Pike kept a fragment of Slemmer's skull as a souvenir and, upon returning to the Job Corps residence, showed it to other participants and boasted about how she had obtained it. Even so, Pike insisted that she and her co-conspirators had merely intended to frighten Slemmer and that their plan had gotten out of control.

Pike and Shipp were arrested within days of the murder and subsequently confessed. On March 22, 1996, Pike was convicted of first-degree murder and conspiracy, and on March 30 was sentenced to death by electrocution, becoming the youngest woman on Tennessee's death row. Pike's defense presented evidence of childhood abuse, family substance abuse and psychological impairment, while subsequent appeals introduced additional evidence concerning her mother's heavy drinking during pregnancy, childhood seizures, possible neurological impairment and bipolar disorder.

Shipp was convicted of first-degree murder and sentenced to life imprisonment with the possibility of parole, his age at the time of the crime preventing him from receiving the death penalty. Peterson agreed to a plea deal on a reduced charge of accessory to murder in exchange for her testimony against Pike and Shipp.

On September 30, 2026, the State of Tennessee attempted to execute Christa Pike by lethal injection, but she survived the administration of two doses of pentobarbital. Initially in critical condition, she recovered sufficiently to be discharged from hospital and, on October 10, was transferred back to the Debra K. Johnson Rehabilitation Center, where she had been imprisoned for much of the preceding three decades. Pike became the first known person in United States history to survive an execution attempt after receiving lethal-injection drugs.

The painting consists of manipulated images from court, crime-scene and street-view photographs, combined with a digital reproduction of Sebastiano del Piombo's original painting.