“The answer is ‘No,’” she decided, proceeding with her mission to the death chamber in Terre Haute, Indiana, where in August 2020 Battista said a silent prayer while witnessing the lethal injection of Keith Dwayne Nelson, convicted of kidnapping, sexually assaulting and killing a 10-year-old girl. NEW YORK (AP) - After Sister Barbara Battista, a Roman Catholic nun staunchly opposed to the death penalty, agreed to accompany a condemned man at his execution in federal prison, she wondered doubtfully, “Am I just part of this whole killing machine?”