Worst mass shootings in U.S. history The attack on Florida’s Marjory Stoneman Douglas High School is the 18th school shooting in the U.S. within the first 45 days of 2018 — more than twice as many as at this time last year Date Fatalities (excludes death of shooter during incident) Injuries Oct 2017 Las Vegas, Harvest Music Festival 58 527 Jun 2016 Orlando nightclub 49 53 Apr 2007 Virginia Tech 32 23 Dec 2012 Connecticut 27 Sandy Hook school 2 Nov 2017 Texas 26 First Baptist Chur 20 Oct 1991 Texas 23 Luby’s Cafeteria 20 Jul 1984 California 21 McDonald’s 19 Aug 1966 Texas 18 University of Texa 30 Feb 2018 Florida 17 Marjory Stoneman Douglas High School 14 Aug 1986 Oklahoma 15 Edmond post office 6 Source: Gun Violence Archive © GRAPHIC NEWS