From NRA:

Mark “Oz” Geist served 12 years in the United States Marine Corps and was a member of the Annex Security Team that fought the Battle of Benghazi. He answered freedom’s call when Washington wouldn’t even pick up the phone. Mark has the courage to tell the truth about Benghazi and how our politicians’ inexcusable inaction led to the deaths of four Americans, including Navy SEALs Glen Doherty and Tyrone Woods.