Rev. Patrick Desbois, author of the book The Holocaust By Bullets: A Priest’s Journey to Uncover the Truth Behind the Murder of 1.5 Million Jews spoke as part of the D.B. Reinhart Institute for Ethics in Leadership’s spring lecture series March 23. Fr. Desbois has devoted his life to researching the Holocaust, fighting anti-Semitism, and furthering relations between Catholics and Jews. He is the president of Yahad–In Unum, a global humanitarian organization he founded, which is dedicated to identifying and commemorating the sites of Jewish and Roma mass executions perpetrated by Nazi mobile killing units, the Einsatzgruppen, during World War II.