Christa Pike, 50, remains in critical state in a Nashville hospital after surviving an attempt to execute by lethal injection in Tennessee, an episode his lawyers call "chemical torture" and which has revived the debate on the death penalty in the United States. Pike received two doses of pentobarbital during the procedure, but did not die. The governor of Tennessee, Bill Lee, suspended the executions planned for the rest of the year and ordered an independent investigation into what happened.

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