Christa Pike’s status as a natural redhead may have contributed to her surviving a double dose of Tennessee’s lethal injection drug, a board-certified anesthesiologist has suggested.
Dr. Elisha Peterson, a U.S. Anesthesiologist who spoke, pointed to research showing that most natural redheads carry mutations to the MC1R gene. That same genetic variation has been linked to increased tolerance for anaesthesia, meaning redhead patients typically need larger medication doses both to fall asleep and to stay sedated.
“The problem with the protocol,” Peterson said of state executions, “Is that it does not allow for any variability in the dosing given her physiology.”

Peterson noted that while pentobarbital—the drug used in Tennessee executions—is not administered in operating rooms, it shares properties with propofol, a common general anaesthetic. Redheads frequently require higher propofol doses to achieve full sedation, she explained. The MC1R gene, she added, makes “certain receptors in the nervous system more resistant to anaesthetic medications.”
The contrast with another recent execution was stark. Jamaal Howard, 46, was put to death in Texas just one week after Pike’s failed procedure. Both states used pentobarbital. Howard ceased moving within 30 seconds of injection. Pike, 50, remained alive more than an hour after receiving two separate doses, with witnesses reporting that she talked, breathed and snored throughout.
Peterson indicated that Howard’s rapid death suggested the full pentobarbital dose reached his circulatory system properly, unlike in Pike’s case.
Multiple medical experts and Pike’s attorneys have raised the possibility that the drug entered soft tissue in her arm rather than her bloodstream. During the procedure, Pike complained that a vein felt like it was “about to bust,” and her team has claimed staff used seven needles attempting to find a suitable vein. She is the only known inmate to survive two full doses of pentobarbital, though Tennessee has seen at least one other botched lethal injection—Tony Carruthers received a one-year reprieve after staff failed to locate a vein entirely.
Initial fears that Pike had suffered brain damage from the ordeal have eased. Her legal team has reported in recent days that she is conscious, communicative and able to walk. Peterson assessed that Pike “does not appear to have any significant neurocognitive effects from the lethal injection attempt,” adding that the drug “[Pentobarbital] should be completely out of her system in 7-10 days.”
Tennessee has temporarily halted all executions pending investigation into what went wrong. Separately, a judge has granted a motion to preserve evidence from the procedure. Questions about who will cover Pike’s ongoing medical costs while she remains hospitalized have also surfaced.
Pike was convicted for the 1995 torture and murder of Colleen Slemmer, a fellow Job Corps student in Knoxville. She was 18 at the time of the killing, which prosecutors said involved a satanic ritual. Her case has drawn renewed attention not only for the execution failure but for her status as the only woman on Tennessee’s death row.
Tennessee’s next scheduled execution date and city have not been publicly announced as the state maintains its pause.

