Below is a list of the 10 deadliest single-day mass shootings from 1949 to the present. (If the shooter was killed or died by suicide during the incident, that death is not included in the total.)
Pulse night club
June 12, 2016 - Omar Saddiqui Mateen, 29, opens fire inside Pulse, a gay nightclub, in Orlando. At least 49 people are killed and more than 50 are injured. Police shoot and kill Mateen during an operation to free hostages officials say he was holding at the club.
April 16, 2007 -
Student Seung-Hui Cho, 23, goes on a shooting spree, killing 32 people in two locations and wounding an undetermined number of others on the campus of Virginia Tech in Blacksburg
. The shooter dies by suicide.
December 14, 2012 -
Adam Lanza, 20, guns down 20 children, ages 6 and 7, and six adults, school staff and faculty at Sandy Hook Elementary School
in Newtown, Connecticut. -- before turning the gun on himself. Investigating police later find Nancy Lanza, Adam's mother, dead from a gunshot wound.
October 16, 1991 - In Killeen, Texas, 35-year-old George Hennard crashes his pickup truck through the wall of a Luby's Cafeteria. After exiting the truck, Hennard shoots and kills 23 people. He then takes his own life.
McDonald's in San Ysidro
July 18, 1984 - In San Ysidro, California, 41-year-old James Huberty, armed with a long-barreled Uzi, a pump-action shotgun and a handgun, shoots and kills 21 adults and children at a McDonald's. A police sharpshooter kills Huberty one hour after the rampage begins.
University of Texas
August 1, 1966 - In Austin, Charles Joseph Whitman, a former US Marine, kills 16 and wounds at least 30 while shooting from a University of Texas tower. Police officers Ramiro Martinez and Houston McCoy shoot and kill Whitman in the tower. Whitman had killed his mother and wife earlier in the day.
December 2, 2015 -
Married couple Syed Rizwan Farook and Tashfeen Malik open fire on an employee gathering taking place at Inland Regional Center in San Bernardino, killing 14 people.
They are killed in a shootout with police later in the day.
August 20, 1986 - In Edmond, Oklahoma, part-time mail carrier Patrick Henry Sherrill, armed with three handguns, kills 14 postal