A look at the deadliest mass shootings in America, where they happened, and who was responsible..
1. Pulse nightclub. Orlando, FL. At least 50 killed. Today.
2. Virginia Tech. Blacksburg, VA. 32 killed. April 16, 2007. Shooter was student at the university.
3. Sandy Hook Elementary. Newtown, CT. 27 killed. Dec. 14, 2012. Shooter was a 20-year-old who lived nearby but had no known direct connection with the school.
4. Luby’s Cafeteria. Killeen, TX. 23 killed. Oct. 16, 1991. Shooter was an unemployed man known for anger toward women, minorities.
5. McDonald’s. San Ysidro, CA. 21 killed. July 18, 1984. Shooter was a disgruntled former employee.
6. University of Texas Tower. Austin, Texas. 18 killed. Aug. 1, 1966. Shooter was a student at the university who shot his wife and mother before taking to the tower on campus.
7. Inland Regional Center holiday party. San Bernardino. 14 killed. Dec. 2, 2015. Two shooters were a married couple and Islamic extremists.
8. Post office in Edmond, OK. 14 killed. Aug. 20, 1986. Shooter was a disgruntled postal worker at the facility.
9. Columbine High School. Littleton, CO. 13 killed. April 20, 1999. Two shooters were students at the high school.
10. Fort Hood, TX. 13 killed. Nov. 5, 2009. Shooter was an Army psychiatrist on the base who shouted “Allahu Akbar,” or “God is Greatest,” as he opened fire.
11. Immigration center citizenship class. Binghamton, NY. 13 killed. April 3, 2009. Shooter was an immigrant connected with the facility.
12. Wah Mee gambling club. Seattle, WA. Feb. 18, 1983. 13 killed. Three shooters robbed their victims and then killed them.