死刑是“社会终极愤怒的一种表达”，曾任检察官，现在是科罗拉多州丹佛大学教授的Bob Grant说。
It is "an expression of society's ultimate outrage", says Bob Grant, a former prosecutor and now a professor at the University of Denver, Colorado.
“这个研究很有趣，”科罗拉多州丹佛大学的精神病学副教授，医学博士安·阿林西说，他也在做这个领域的研究。
“This is an interesting study, ” Ann Olincy, M.D., an associate professor of psychiatry at the University of Colorado at Denver who has done research in this area, told Psychiatric News.
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