Christa Pike’s case has reached execution day in Tennessee, with the state preparing to carry out her death sentence on September 30 while her attorneys await any last-minute intervention from the U.S. Supreme Court.

Pike, 50, is scheduled to be executed by lethal injection at 10:00 a.m. CDT at Riverbend Maximum Security Institution in Nashville. If the execution proceeds, she would become the first woman executed in Tennessee in more than 200 years.

Her legal team has asked the U.S. Supreme Court to stop the execution, arguing that unresolved constitutional issues surrounding Tennessee’s lethal-injection protocol deserve further review. That emergency appeal became even more important after Tennessee’s courts declined to grant relief and Gov. Bill Lee formally denied clemency on September 28.

Pike’s clemency effort focused heavily on her age at the time of the crime — 18 years old — as well as her documented history of childhood sexual abuse, PTSD, bipolar disorder and other mental-health problems. Her attorneys argued that modern understanding of adolescent brain development and trauma should weigh against execution.

Her lawyers have also challenged aspects of the execution procedure itself. They argued that physical restraint, invasive medical procedures and interactions with male prison staff could trigger severe trauma responses. Tennessee courts, however, concluded that Pike had not shown a sufficient likelihood that the protocol violated her constitutional rights.  Center

Pike was sentenced to death for the 1995 murder of 19-year-old Colleen Slemmer. Slemmer’s family has consistently supported the sentence and has spoken publicly about the lasting impact of the killing. Pike, meanwhile, expressed remorse in her clemency petition and acknowledged the suffering caused by her actions.

Another major point of controversy is the difference between Pike’s sentence and those received by the other teenagers involved. Her boyfriend, Tadaryl Shipp, was 17 and therefore legally ineligible for the death penalty; he received a life sentence. A third participant received probation after cooperating with prosecutors.