Renewed calls to scrap death penalty after failed execution of Christa Pike
There are renewed calls to scrap the death penalty, after the botched execution left a convicted murderer in hospital when efforts to kill her by lethal injection failed. Witnesses say after two doses of the potentially fatal medicine, Christa Pike was still alive, speaking in full sentences to begin with and then snoring. Professor Deborah Denno from New York's Fordham University School of Law has studied death penalty cases for decades, and believes the punishment is too widely used. She spoke to Lisa Owen.
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