1)  Lauter, Deborah M., and Mark Pitcavage. "Oklahoma City Bombing, Lessons 20 Yars Later (Opinion) - CNN.com." CNN. Cable News Network, 19 Apr. 2015. Web. 17 Jan. 2016. <http://www.cnn.com/2015/04/17/opinions/lauter-pitcavage-oklahoma-bombing/>.

 

2) "Terror Hits Home: The Oklahoma City Bombing." FBI. FBI, 21 Apr. 2010. Web. 17 Jan. 2016. <https://www.fbi.gov/about-us/history/famous-cases/oklahoma-city-bombing>.

 

3) "Responding to Terrorism Victims - Oklahoma City and Beyond." Responding to Terrorism Victims - Oklahoma City and Beyond. Oct. 2010. Web. 17 Jan. 2016. <http://ojp.gov/ovc/publications/infores/respterrorism/executive.html>.

 

4) Caplan, Lincoln. "The Destruction of Defendants' Rights - The New Yorker." The New Yorker. 2015. Web. 17 Jan. 2016. <http://www.newyorker.com/news/news-desk/the-destruction-of-defendants-rights>.

 

5) "Oklahoma City Bombing." Wikipedia. Wikimedia Foundation. Web. 17 Jan. 2016. <https://en.wikipedia.org/wiki/Oklahoma_City_bombing>.

 

6) "Oklahoma City Bombing." History.com. A&E Television Networks, 2009. Web. 17 Jan. 2016. <http://www.history.com/topics/oklahoma-city-bombing>.

 

7)  "Why I Bombed the Murrah Federal Building." Why I Bombed the Murrah Federal Building. Web. 17 Jan. 2016. <http://www.outpost-of-freedom.com/mcveigh/okcwhy.htm>.

 

8) "Columbine High School Shootings." History.com. A&E Television Networks, 2009. Web. 17 Jan. 2016. <http://www.history.com/topics/columbine-high-school-shootings>.

 

9) Bingham, Amy. "Shootings That Shaped Gun Control Laws." ABC News. ABC News Network. Web. 17 Jan. 2016. <http://abcnews.go.com/Politics/OTUS/shootings-shaped-gun-control/story?id=16863844>.

 

10) Sutter, John D. "Columbine Massacre Changed School Security." CNN. Cable News Network. Web. 17 Jan. 2016. <http://www.cnn.com/2009/LIVING/04/20/columbine.school.safety/index.html?iref=24hours>.

 

11/12) "Columbine High School Shootings." History.com. A&E Television Networks, 2009. Web. 17 Jan. 2016. <http://www.history.com/topics/columbine-high-school-shootings>.

 

13) "Eric Harris and Dylan Klebold." Wikipedia. Wikimedia Foundation. Web. 17 Jan. 2016. <https://en.wikipedia.org/wiki/Eric_Harris_and_Dylan_Klebold>.

 

14) Sidner, Sara, and Kyung Lah. "Oregon Shooting: Gunman a Student at Umpqua Community College - CNN.com." CNN. Cable News Network, 2 Oct. 2015. Web. 17 Jan. 2016. <http://www.cnn.com/2015/10/02/us/oregon-umpqua-community-college-shooting/>.

 

15) Melvin, Don. "Chris Mintz, Oregon Shooting Hero: 'It's My Son's Birthday Today' - CNN.com." CNN. Cable News Network, 3 Oct. 2015. Web. 17 Jan. 2016. <http://www.cnn.com/2015/10/02/us/oregon-school-shooting-hero/index.html?eref=rss_topstories>.

 

16) Jackson, David. "Obama: 'Our Thoughts and Prayers Are Not Enough'" USA Today. Gannett, 2015. Web. 17 Jan. 2016. <http://www.usatoday.com/story/news/nation/2015/10/01/obama-oregon-shooting-umpqua-community-college-roseburg/73169262/>.

 

17) Sidner, Sara, and Kyung Lah. "Oregon Shooting: Gunman a Student at Umpqua Community College - CNN.com." CNN. Cable News Network, 2 Oct. 2015. Web. 17 Jan. 2016. <http://www.cnn.com/2015/10/02/us/oregon-umpqua-community-college-shooting/>.

 

18) "November 2015 Paris Attacks." Wikipedia. Wikimedia Foundation. Web. 17 Jan. 2016. <https://en.wikipedia.org/wiki/November_2015_Paris_attacks>.

 

19) "2015 Paris Terror Attacks - CNN.com." CNN. Cable News Network. Web. 17 Jan. 2016. <http://www.cnn.com/2015/12/08/europe/2015-paris-terror-attacks-fast-facts/>. 

 

20) McGonigal, Chris."The World Reacts with Solidarity." The Huffington Post. The World Post, 14 Nov. 2015. Web. <http://www.huffingtonpost.com/entry/world-solidarity-photos-paris-terror-attacks_56475a33e4b060377349448c>.

 

21) "November 2015 Paris Attacks." Wikipedia. Wikimedia Foundation. Web. 17 Jan. 2016. <https://en.wikipedia.org/wiki/November_2015_Paris_attacks>.

 

22) DePillis, Lydia. "What Was behind ISIS's Attack on Paris, According to Experts." Washington Post. The Washington Post, 15 Nov. 2015. Web. 17 Jan. 2016. <https://www.washingtonpost.com/news/wonk/wp/2015/11/15/what-was-behind-isiss-attack-on-paris-according-to-experts/>.

 

23) "2015 San Bernardino Attack." Wikipedia. Wikimedia Foundation. Web. 17 Jan. 2016. <https://en.wikipedia.org/wiki/2015_San_Bernardino_attack>.

 

24) "Everything We Know About the San Bernardino Terror Attack Investigation so Far." Los Angeles Times. Los Angeles Times. Web. 17 Jan. 2016. <http://www.latimes.com/local/california/la-me-san-bernardino-shooting-terror-investigation-htmlstory.html>.

 

25) Audi, Tamara, and Miriam Jordan. "San Bernardino Shooting Prompts Soul Searching Among U.S. Muslims." WSJ. 9 Dec. 2015. Web. 17 Jan. 2016. <http://www.wsj.com/articles/san-bernardino-shooting-prompts-soul-searching-among-u-s-muslims-1449698898>.

 

26) "2016 Candidates React to San Bernardino Shooting." CBSNews. CBS Interactive, 2 Dec. 2015. Web. 17 Jan. 2016. <http://www.cbsnews.com/news/2016-democratic-candidates-push-for-gun-control-after-mass-san-bernardino-shooting/>.

 

27) "Everything We Know About the San Bernardino Terror Attack Investigation so Far." Los Angeles Times. Los Angeles Times. Web. 17 Jan. 2016. <http://www.latimes.com/local/california/la-me-san-bernardino-shooting-terror-investigation-htmlstory.html>.

 

Pictures on "Background" Pahe from left to right and top to bottom:

1) http://www.history.com/topics/oklahoma-city-bombing

2) http://www.britannica.com/event/Columbine-High-School-shootings

3) http://www.nydailynews.com/news/crime/oregon-killer-wounded-cops-shot-officials-article-1.2388757

4) http://www.ibtimes.com/paris-attacks-timeline-terror-response-2184525

5) http://www.desertsun.com/story/news/2015/12/07/san-bernardino-memorial-shooting/76942020/