Take it however you want. It's an interesting read (if you read all of it)
http://dailyanarchist.com/2012/07/31/auditing-shooting-rampage-statistics/9/6/1949 - Howard Barton Unruh went on a shooting rampage in Camden, New Jersey with a German Luger. He shot up a barber shop, a pharmacy and a tailor’s shop killing 13 people. He finally surrendered after a shoot-out with police.
8/1/1966 - Charles Joseph Whitman climbed a tower at the University of Texas in Austin, Texas and began shooting at other students and faculty with a sniper rifle. He killed 16 people before being shot and killed by police.
7/18/1984 – James Oliver Huberty shot up a McDonalds in San Ysidro, California killing 21 people before police shoot and killed him.
10/16/1991 - George Hennard entered Luby’s Cafeteria in Killeen, Texas and began indiscriminately shooting the patrons. He killed 23 people in all. He commit suicide after being cornered and wounded in a shootout with police.
11/15/1995 – Jamie Rouse used a .22-caliber semi-automatic rifle to fire indiscriminately inside Richland High School in Lynnville, Tennessee. He killed 2 people before being tackled by a football player and a coach.
2/2/1996 - Barry Loukaitis entered Frontier Middle School in Moses Lake, Washington with a rifle and two handguns. He killed 3 people before the Gym teacher, Jon Lane grabbed the rifle and wrestled the gunman to the ground.
10/1/1997 - Luke Woodham put on a trench coat to conceal a hunting rifle and entered Pearl High School in Pearl, Mississippi. He killed 3 students before vice principal Joel Myrick apprehended him with a Colt .45 without firing.
12/1/1997 - Michael Carneal brought a pistol, two rifles and two shotguns to his high school in Paducah, Kentucky and opened fire on a small prayer group killing 3 girls. His rampage was halted when he was tackled by another student.
4/24/1998 - Andrew Wurst attended a middle school dance in Edinboro, Pennsylvania intent on killing a bully but shot wildly into the crowd. He killed 1 student. James Strand lived next door. When he heard the shots he ran over with his 12 gauge shotgun and apprehended the gunman without firing.
5/21/1998 - Kipland Kinkel entered Thurston High School in Springfield, Oregon with two pistols and a semi-automatic rifle hidden under a trench coat. He opened fire killing 2 students, but while reloading a wounded student named Jacob Ryker tackled him.
4/20/1999 - Dylan Klebold and Eric Harris were the killers behind the Columbine shooting in Littleton, Colorado. The two both commit suicide after police arrived, but what many people do not know is that the school’s armed security guard and the police all stood and waited outside the library while executions happed right inside. 15 people died, not including the shooters.
7/31/1999 - Mark Barton was a daytrader who went on a shooting rampage through two day trading firms in Atlanta, Georgia. He killed 12 people in all and after a police chase he was surrounded by police at a gas station where he commit suicide.
1/16/2002 – Peter Odighizuwa opened fire with a handgun at The Appalachian School in Grundy, Virginia. 3 people were killed before the shooter was apprehended by 3 students, Mikael Gross, Ted Besen, and Tracy Bridges with handguns without firing.
8/27/2003 – Salvador Tapia entered an auto parts store in Chicago, Illinois and shot and killed 6 people with a handgun. He then waged a gunbattle with police before a SWAT team fatally wounded him.
9/24/2003 – John Jason McLaughlin brought a .22-caliber pistol to Rocori High School in Cold Spring, Minnesota. He killed 2 people before PE teacher, Mark Johnson confronted him, disarmed him, and held him in the school office for police to arrive.
2/25/2005 – David Hernandez Arroyo Sr. opened fire on a public square from the steps of a courthouse in Tyler, Texas. The shooter was armed with an assault rifle and wearing body armor. Mark Wilson fired back with a handgun, hitting the shooter but not penetrating the armor. Mark drew the shooter’s fire, and ultimately drove him off, but was fatally wounded. Mark was the only death in this incident.
3/21/2005 – Jeff Weise was a student at Red Lake High School in Red Lake, Minnesota. He killed 7 people including a teacher and a security guard. When police cornered him inside the school, he shot and killed himself.
11/8/2005 – Kenneth Bartley, Jr. brought a .22 caliber pistol to Campbell County Comprehensive High School in Jacksboro, Tennessee and killed 1 person before being disarmed by a teacher.
9/29/2006 – Eric Hainstock brought a .22 caliber revolver and a 20-gauge shotgun into Weston High School in Cazenovia, Wisconson. He killed 1 person before staff and students apprehended him and held him until the police arrived.
4/16/2007 – Seung-Hui Cho was the shooter behind the Virgina Tech shooting in Blacksburg, Virginia. Police apprehend the wrong suspect allowing the shooter to walk across campus and open fire again in a second location. He eventually commit suicide after murdering 32 people.
9/3/2008 – Isaac Zamora went on a shooting rampage in Alger, Washington that killed 6 people, including a motorist shot during a high speed chase with police. He eventually surrendered to police.
3/29/2009 – Robert Stewart went on a killing rampage armed with a rifle, and a shotgun in a nursing home in Carthage, North Carolina. He killed 8 people and was apprehended after a shootout with police.
4/3/2009 – Jiverly Wong went on a shooting rampage at a American Civic Association immigration center in Binghamton, New York where he was enrolled in a citizenship class. 13 people were killed before the shooter killed himself. Witnesses say he turned the gun on himself as soon as he heard police sirens approaching.
11/5/2009 – Nidal Malik Hasan was the shooter behind the Fort Hood shooting at a military base just outside Killeen, Texas. The shooter entered the Soldier Readiness Processing Center, where personnel are disarmed, armed with a laser sighted pistol and a Smith & Wesson revolver. He killed 13 people before he was shot by a Civilian Police officer.
2/12/2010 – Amy Bishop went on a shooting rampage in classroom at the University of Alabama in Huntsville, Alabama. She killed 3 people before the Dean of the University, Debra Moriarity pushed the her out of the room and blockaded the door. She was arrested later.
1/8/2011 – Jared Lee Loughner is charged with the shooting in Tucson, Arizona that killed 6 people, including Chief U.S. District Court Judge John Roll. He was stopped when he was tackled by two civilians.
2/27/2012 – T.J. Lane entered Chardon High School in Chardon, Ohio with a handgun and started shooting. 3 students died. The shooter was chased out of the building by a teacher and apprehended by police later.
4/22/2012 – Kiarron Parker opened fire in a church parking lot in Aurora, Colorado. The shooter killed 1 person before being shot and killed by a member of the congregation who was carrying concealed.
7/20/2012 – James Holmes went into a crowded movie theater in Aurora, Colorado and opens fire with an AR-15 semi-automatic assault rifle. 12 people were killed, before the shooter surrendered to police.