An inmate in the US state of Tennessee is to be executed by electric chair after arguing that a lethal injection would involve suffering.
David Earl Miller, who has spent 36 years on death row, is among an increasing number of inmates attempting to avoid lethal injection following several botched executions.
Another Tennessee inmate, Edmund Zagorski, was electrocuted last month.
Lethal injection is the state’s main method of execution.
However, inmates in the state whose crimes were committed before 1999 are allowed to choose electrocution instead.
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In court, both Miller and Zagorski had cited the August execution of Billy Ray Irick, who turned purple and took 20 minutes to die, AP reported.
Zagorski’s execution was the second time the state’s electric chair had been used since 1960.
Miller, who is due to be executed on Thursday, was found guilty of killing a 23-year-old mentally ill woman in 1981.
Why is lethal injection controversial?
Miller, 61, and Zagorski, 63, argued that the midazolam-based lethal injection used by Tennessee would lead to a prolonged and painful death.
It follows a series of executions using a variety of drug combinations where prisoners have appeared to suffer. The US constitution bans cruel and unusual punishments.