The United States Supreme Court has removed the final judicial obstacle standing in the way of Tennessee executing death row inmate Christa Pike, setting aside a temporary stay issued earlier in the day by a lower federal court.

Pike, who is now fifty years old, has spent decades on death row following her conviction for a 1996 homicide. The original lethal injection procedure had been slated to occur during morning hours on Wednesday, but judges from the Sixth Circuit Court of Appeals intervened at the eleventh hour to pause the proceedings and allow additional time for legal review.

Following the lower court's decision, representatives for the state's attorney general quickly petitioned the nation's highest court to dissolve the pause. Supreme Court Justice Brett Kavanaugh issued the order to vacate the stay late Wednesday afternoon, though the brief ruling offered no detailed reasoning behind the decision.

The ruling drew opposition from the court's three liberal members. Writing a dissenting opinion, Justice Sonia Sotomayor argued that the green light for the execution bypassed unresolved legal questions regarding the validity of the underlying conviction. She emphasized that the state's interest in a swift timeline could not supersede an individual's fundamental stake in their own existence.

The procedural developments unfolded against a strict deadline, arriving shortly before the state's authorized execution window was scheduled to expire at midnight. If the process failed to move forward before that cutoff, authorities would have had to return to the state supreme court to secure a fresh execution date.

Pike's defense attorneys had recently pressed for additional judicial review concerning shifting positions taken by state officials regarding her background. Legal filings noted that while the state previously contested claims that Pike experienced severe abuse and sexual trauma during her youth, prosecutors recently acknowledged those experiences during hearings focused on the state's execution protocols. Her counsel argued that previous federal evaluations had been compromised by the state's prior assertions.

Earlier in the week, Pike exhausted other avenues for relief when the Supreme Court declined to review a separate appeal, and the governor of Tennessee subsequently rejected a formal petition for clemency.

Pike was eighteen years old at the time of the offense, having been convicted alongside her former partner for the brutal killing of nineteen-year-old Colleen Slemmer at a residential training program for young adults. If carried out, the execution will mark the first time Tennessee has put a female inmate to death in over two centuries.

Reporting based on coverage first published by BBC News. Read the original report at BBC News.