Erick Jamal Hendricks is accused of trying to recruit people for attacks in the United States.
Officials say he disclosed sensitive information in exchange for prostitutes, cash and hotel rooms.
Within minutes of the shooting, police entered the Pulse nightclub and outnumbered Omar Mateen. It would take nearly three more hours before he was killed.
Mohamedou Ould Slahi, who wrote the best-selling “Guantanamo Diary,” has been at the facility for 14 years.
A deal with Russia is needed to stem the growth of Jabhat al-Nusra, officials say.
The Louisiana State Police said Monday that they believe the officers were ambushed.
The bureau might never know Omar Mateen’s true reasons for singling out the nightclub.
The redacted pages were part of a 2002 congressional investigation into the attacks.
The gunman sang and laughed at police during a lengthy negotiation, Dallas Police Chief David Brown said on CNN.
Dallas gunman Micah Xavier Johnson made the remarks before he was killed by a bomb-carrying robot, police said.