Lisa Montgomery

US executes first woman on federal death row in nearly seven decades

Montgomery's execution marked the first time the US government has implemented the death sentence for a female prisoner since 1953.

Challenges were fought across multiple federal courts on whether to allow execution of Montgomery, 52, who had initially been scheduled to be killed by lethal injections of pentobarbital, a powerful barbiturate on Tuesday in the Justice Department's execution chamber at its prison in Terre Haute, Indiana.