Prison officials in Nashville called off the execution of Tony Carruthers on Thursday after medical staff spent an hour attempting, and failing, to locate a suitable vein for a second intravenous line required under state protocol. The 57-year-old, convicted of kidnapping and murdering three people in 1994, had already had a primary line inserted when the procedure was abandoned. The state’s Department of Corrections said the protocol mandated a backup line; unable to find one, they halted the process. Tennessee Governor Bill Lee subsequently granted Carruthers a one-year reprieve.

Carruthers has maintained his innocence throughout more than three decades on death row, and his legal team had been pressing for DNA testing they argue could exonerate him. Speaking to NBC News, his attorney described the failed execution as “torture” carried out “in the name of justice”. The incident echoes previous concerns over lethal injection procedures across the United States, where botched executions have prompted legal challenges and moratoriums.

Tennessee had not carried out an execution in three years, owing to unresolved doubts about the safety and humanity of lethal injection. Viewed from Europe, where capital punishment is universally abolished, the episode reinforces longstanding criticism of the practice. In Washington, the case may add to a growing bipartisan unease about the mechanics of the death penalty, though substantive reform remains politically fraught.

The one-year reprieve grants Carruthers’ lawyers a window to pursue further legal avenues, including the requested DNA analysis. Whether the state can resolve its intravenous access problems – or whether lethal injection itself faces renewed scrutiny – remains an open question. For now, a man who has spent half his life awaiting execution returns to his cell, the uncertainty of his fate unchanged.