The International Conference of Evangelical Chaplain Endorsers in Greenville, S.C., endorses chaplains from evangelical religious groups.

The Archdiocese for the Military Services USA, which has its headquarters in Washington, D.C., includes 1.4 million Catholic military personnel and families. Archbishop Timothy P. Broglio heads the archdiocese.

The American Muslim Armed Forces and Veterans Affairs Council serves Muslim military personnel and veterans. Executive director is Qaseem Ali Uqdah. Contact through the website.

Mark A. Costanzo is a psychology professor at Claremont McKenna College in Claremont, Calif. He is an expert on the death penalty, nonverbal communication, expert testimony and social psychology. He wrote Just Revenge: Costs and Consequences of the Death Penalty.

Defense lawyer Gregory J. Kuykendall specializes in capital cases and wrote about the politics of death sentencing in Arizona. He is also lead death penalty counsel to the Mexican Foreign Ministry.

John D. Carlson is associate professor of religious studies at Arizona State University. His books include, as co-editor, Religion and the Death Penalty: A Call for Reckoning. His work focuses on religion, ethics and politics.

John C. McAdams is a political scientist at Marquette University in Milwaukee whose research focuses on congressional politics, social class and elections and capital punishment. He has written that he favors capital punishment, even if it doesn’t work as a deterrent.

Joseph L. Hoffmann is Harry Pratter Professor of Law at Indiana University-Bloomington. He is an expert on the death penalty and federal criminal law.

Dudley Sharp of Houston is a death penalty activist who formerly opposed capital punishment but now supports it. He has been interviewed on major television and radio news and opinion programs and included in newspaper articles.