Question: Which author of "Killing Jesus" was also host of "The Radio Factor"?
Context: William James O'Reilly Jr. (born September 10, 1949) is an American journalist, author, and television host.  During the late 1970s and 1980s, he reported for local television stations in the United States and later for CBS News and ABC News.  He anchored the tabloid television program "Inside Edition" from 1989 to 1995.  In 1996, O'Reilly joined the Fox News Channel and hosted "The O'Reilly Factor" until 2017.  "The O'Reilly Factor" was the highest-rated cable news show for 16 years and he was described by media analyst Howard Kurtz as "the biggest star in the 20 year history at Fox News" at the time of his departure.  He is the author of several books and hosted "The Radio Factor" (2002–2009).  After a "New York Times" investigation revealed that O'Reilly and Fox News had settled five sexual harassment lawsuits totaling $13 million, Fox News terminated O'Reilly's employment.  In 2017, he started the "No Spin News" podcast. Killing Reagan: The Violent Assault That Changed a Presidency is a book written by Bill O'Reilly and Martin Dugard about the attempted assassination of U.S. President Ronald Reagan in 1981.  It is the fifth in the "Killing" series, following "Killing Lincoln", "Killing Kennedy", "Killing Jesus", and "Killing Patton".  The book was released on September 22, 2015, and topped "The New York Times" Best Sellers List. American commentator Bill O'Reilly regularly expresses his points of view on a wide variety of political, social, and moral issues.  He has personally labeled his political philosophy "traditionalism". " The O'Reilly Factor," since its inception on the Fox News Channel in 1996, has been the primary outlet of his opinions.  O'Reilly started his own radio program, "The Radio Factor", a few years later.  He has also written several non-fiction books detailing some of his beliefs.  O'Reilly generally leans to the right on most issues, most notably the Bush administration's War on Terror, but breaks from the conservative and Republican majority on such issues as the global warming controversy, gun control, gay marriage and the death penalty. Killing Jesus is an American television film inspired by the 2013 book of the same title by Bill O'Reilly and Martin Dugard.  This is National Geographic's third installment of television adaptations of O'Reilly's non-fiction books which included "Killing Lincoln" and "Killing Kennedy".  The cast includes Haaz Sleiman, Kelsey Grammer, Stephen Moyer, Emmanuelle Chriqui, and John Rhys-Davies. David W. Zucker is President of Television for Scott Free, and Executive Producer of the landmark series adaptation of Philip K. Dick’s classic “The Man in the High Castle” for Amazon, esteemed Civil War medical drama “Mercy Street” on PBS, the forthcoming first season of the Amazon half-hour action-comedy starring Jean-Claude Van Damme as “Jean-Claude Van Johnson,” the AMC anthological psychological thriller “The Terror,” “The Good Fight," the widely acclaimed CBS all-access spin-off of “The Good Wife,” and “Killing Reagan,” the fourth in the acclaimed National Geographic channel series of “Killing” telefilms (which include “Killing Jesus” and “Killing Kennedy,” both Emmy-nominated, plus the docudrama “Killing Lincoln”).  During his tenure, Scott Free has produced a steady stream of highly acclaimed programs including the Emmy and Golden Globe-nominated, Peabody-winning drama, “The Good Wife,” which recently concluded its 7th and final season on CBS, as well as “Numb3rs,” which ran for six successful seasons on the same network.  Notable long form programs include “Klondike” for Discovery, the Emmy and Golden Globe-nominated “The Pillars of the Earth” for Starz, “World Without End” for Reelz, Emmy-nominated “Into the Storm” for HBO, Emmy-nominated “The Andromeda Strain” and “Coma” for A&E, the Golden Globe-nominated “The Company” at TNT and a feature-length digital series for X-Box/Microsoft, “Halo: Nightfall.”  Acclaimed non-fiction programs include “Crimes of the Century” and the Emmy-winning documentary special “Gettysburg” for History Channel.  Previously, Zucker worked as a Story Editor on the CBS series, Judging Amy, wrote pilot scripts for CBS and ABC, as well as various stage plays, and served as VP of Drama Series for CBS in addition to VP of Drama Series & Current Programs at Warner Bros.  TV. Killing the Rising Sun: How America Vanquished World War II Japan is a book written by Bill O'Reilly and Martin Dugard about the Pacific War and concludes with details of the Atomic bombings of Hiroshima and Nagasaki in August, 1945.  It is the sixth book in the "Killing" series, following "Killing Lincoln", "Killing Kennedy", "Killing Jesus", "Killing Patton" and "Killing Reagan".  The book was released on September 13, 2016. Haaz Sleiman (Arabic: هاز سليمان‎ ‎ ; born July 1, 1976) is a Lebanese-American television and film actor.  He most notably played the role of Tarek in the 2007 film "The Visitor" and the role of Jesus in the American TV mini-series "Killing Jesus", in addition to a number of American TV series. Killing Patton: The Strange Death of World War II's Most Audacious General is a book written by Bill O'Reilly and Martin Dugard about the final year of World War II and the death of General George Patton, specifically whether it was an accident or an assassination.  The book is the followup to "Killing Kennedy", "Killing Lincoln", and "Killing Jesus" and was published in September 2014 through Henry Holt and Company. Killing Jesus: A History is a 2013 book by Bill O'Reilly and Martin Dugard about the life and crucifixion of Jesus, referred to in the book as Jesus of Nazareth.  It is the follow-up to "Killing Kennedy" and "Killing Lincoln".  "Killing Jesus" was released September 24, 2013 through Henry Holt and Company. "I Can't Stand It" was the first single from Eric Clapton's 1981 album "Another Ticket".  On the record label for the vinyl 45, its credited as Eric Clapton and His Band.  It was also used for interludes on Bill O'Reilly's radio show, The Radio Factor.
Answer: Bill O'Reilly