Utah has become the only US state able carry out death by firing squad.
Governor Gary Herbert approved the move for executions where lethal drugs are not available, even though he admits the method is “a little bit gruesome”.
The new law, passed by the state Senate earlier this month, was brought in after national concerns about death by lethal injection.
Convicted killer Arnold Prieto screamed “I can smell it” as he was put to death in Texas earlier this year.
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