Ellis, Ralph Fantz, Ashley McLaughlin, Eliott C. Hume, Tim (June 14, 2016). "Orlando shooting: What determined a killer?". Edwards, Julie Heavey, Susan Ahmann, Tim (June 13, 2016). "Orlando shooter may well have been encouraged by foreign terrorists -FBI". Barry, Dan Kovaleski, Serge F. Blinder, Alan (June 18, 2016). "'Always Agitated. Always Mad': Omar Mateen, According to Those Who Knew Him". Almasy, Steve (November 18, 2016).