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US Mass Shootings, 1982-2012: Data From Mother Jones' Investigation

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- 1956 days ago -
Since we began our investigation into mass shootings following the attack in Aurora, Colorado, in July 2012, we've heard from numerous academic researchers, legislative aides, and others wanting access to our full data set.

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Kit B (276)
Friday January 11, 2013, 6:38 pm
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Since we began our investigation into mass shootings following the attack in Aurora, Colorado, in July 2012, we've heard from numerous academic researchers, legislative aides, and others wanting access to our full data set. Here it is below, including links to sources where available. You can also download this data in CSV, XLS, or TXT formats, or click here for the Google spreadsheet view. (Unfortunately, the embedded version below does not support expanding the cells to see the full text in some places, but you can access it these other ways.)

For more context, analysis, and links to the series of stories from our five-month investigation, see "The NRA Myth of Arming the Good Guys" and our guide to mass shootings in America.

***Please GO to VISIT SITE and see the full chart - 62 mass murders in the US since 1982.

By Mark Follman, Gavin Aronsen, and Deanna Pan | Mother Jones magazine |

JL A (281)
Friday January 11, 2013, 7:07 pm
And there was another school shooting with two dead in Kern County, CA on Thurs. "How many more deaths will it take until we decide that too many people have died?"

Kit B (276)
Friday January 11, 2013, 7:21 pm

Add my own home town of San Antonio to that list. Luckily, for those involved an off duty police officer was working as a guard at game center near the theater and was able to stop him. She did shoot him but he is recovering in the hospital as are his victims. He was angry with his girl friend.

Patrick D (344)
Friday January 11, 2013, 8:21 pm
My wife is from Scotland - all she says to me about this is "You Americans are crazy!"

She's right.

Kit B (276)
Friday January 11, 2013, 8:36 pm

There's a whole lot of Scottish blood in America - could that be a part of our crazy? We are "gun crazy" and that is a rather new phenomena. I think that's been nudged along by the interests of lobbies like the NRA.

I just heard some NUT on the news say, "If slaves had been given guns...." then it trailed off. I didn't see what channel was on, maybe CNN dunno. My response is that if slaves had guns than we wouldn't be calling them slaves now would we. I think Patrick you wife is correct.

Kit B (276)
Friday January 11, 2013, 8:38 pm

** your wife** typo or self editing problem.

John C (75)
Friday January 11, 2013, 8:58 pm
One of the worst school killings in GB occurred in Scotland. Just Google it.

I own them. Not as young as I used to be. I can't light matches anymore. I also own a fire extinguisher. That doesn't mean that I intend to burn down the house.
I don't believe that guns are as much of a problem As the immaturity of our people.

In the 9th century every able bodied man in England was REQUIRED to report to the village green after Church on Sunday for target practice. They used long bows then. They were accurate to 600 yards. The secret of how they treated the bowstring has been lost to history. It cannot be replicated even with a compound bow. The French hated them. They would cut off the fore and middle finger of such people to reduce the threat level. When they survived they would hold up these two fingers to them to show that they were not yet safe. Richard Nixon used the same symbol but the populace assumed what he meant by that.

If every citizen could report to a range to qualify as law enforcement does, to be evaluated by proficiency, as well as mental state, half of the fear could be diminished in 5 years. The problem is raising a generation of indiscriminate killers. Not citizens. That has little to do with the 2nd amendment. The problem will not go away no matter the laws passed. Such will resort to arson or bombs such as Northern Ireland.

We take too much for granted.

By all means legislate a ban on assault rifles, I know of no weapon one cannot suffer assault from.Or a limit on the purchase of ammunition. How will that protect the population from those who make their own?
How will any of this protect our children from someone who would steal the weapons of their parents and shoot them before they attack us? This is not a gun problem. I agree that something must give here. I have one's that go to school as well.

Rose Becke (141)
Saturday January 12, 2013, 3:03 am

Terry King (113)
Saturday January 12, 2013, 9:59 am
”I spent a career carrying typically either a M16 and later, a M4 carbine,” McChrystal said on MSNBC’s “Morning Joe.” “And a M4 carbine fires a .223 caliber round, which is 5.56 millimeters, at about 3,000 feet per second. When it hits a human body, the effects are devastating. It’s designed to do that. That’s what our soldiers ought to carry.”

Read more:
This may be the first time I've ever agreed with a general!

Theodore Shayne (56)
Saturday January 12, 2013, 10:05 am
Angry with your girlfriend or one of your parents so you go out and injure and murder a whole bunch of innocent people. Bullied by a peer group but you don't shoot them you shoot someone else who is unconnected. The real target goes unscathed. How cowardly is that?
I don't understand the mentality at work here. How does that even the score with your antagonist. This seems to be the same mentality we find in many serial killers. They don't have the courage to confront the protagonist so they utilize a group of victims that substitute for that person until they can work up the courage if they ever do. They are indeed nothing more than a cheap, empty suit.
I think we have to start seriously confronting the mental health issue involved in this; along with the prescribing of SSRI type drugs. I think we need to evaluate any person who wants to purchase a firearm. These are just suggestions because I don't have the answers.

Kit B (276)
Saturday January 12, 2013, 12:19 pm

I saw McChrystal on clips from Morning Joe and on Jon Stewart. I completely agree with his stand. I'm not supportive of any war, I would like for all of us to evolve beyond that, but until that time. The only use for military grade weapons is a battle field. This in no way infringes on the second amendment, that's a hollow argument.

JL A (281)
Saturday January 12, 2013, 3:52 pm
You cannot currently send a star to Kit because you have done so within the last week.

Barbara K (60)
Saturday January 12, 2013, 4:18 pm
Exactly, Kit. Military weapons are for killing in wars. If one wants to shoot one, join the military. Meantime, if you just want to feel safe at home, put in a Security System with a loud alarm and linked to the police dept., and/or get a good dog. There are many in Shelters all over the country begging for nice homes. You will also have the companionship of a loving dog. Burglars don't enter homes with a barking dog and/or loud alarm blasting.

Barbara K (60)
Saturday January 12, 2013, 4:19 pm
Continued. Security Systems like the above can also be installed in schools, churches, etc.

JL A (281)
Saturday January 12, 2013, 4:25 pm
You cannot currently send a star to Barbara because you have done so within the last week. Or until you install, you can sleep with your car keys by you and set off your car alarm from inside if someone is trying to enter.

kathleen benbow (3)
Saturday January 12, 2013, 6:04 pm
I can't imagine what good purpose an assault weapon serves in a civilian household. I'm ok with a service handgun used in the line of duty or a shotgun used for hunting, especially if it's for a source of food, provided it's locked up and kept out of the hands of children and/or those not trained or capable of handling them.. But automatic weapons have no other application other than the military. I'm also in favor of more mental health screening. But I think a lot of this may stem from proper parenting, or the lack therof. I grew up learning right from wrong, and the Fourth Commandment, to my knowledge, exists in some form in every faith.

JL A (281)
Saturday January 12, 2013, 6:28 pm
You cannot currently send a star to kathleen because you have done so within the last week.

John C (75)
Saturday January 12, 2013, 9:36 pm
Again.....There is no weapon one may not be assaulted by.
Only creativity limits an individual. Your tax dollars paid or mine.
Many come home with PTSD, you think they are the only casualties? Their wives that won't leave them and the children that learn from them are the casualties too. We have more veterans in this country than some other nations have population. There is going to be a cost for this. Thank you all for the tax dollar contributions that make it possible to never disarm me. No matter what legislation is passed. I will obey the law. I will also protect the nation with every tool you have made available to me.
I understand your fear. You're arguments are shallow, and I hope you don't live to regret them.

Sunday January 13, 2013, 6:19 am
Some people these days are just plain loco, and take out their anger out on innocent people because of uncontrolled rage.

Scott haakon (4)
Sunday January 13, 2013, 10:56 am
It is not the guns but the culture of anger and getting even. It is the emotional mistreatment of others. it is the alienation. The it is the fear. It is the lack of education. Guns require education. the best guns now made require education from an early age. Most will not get the experience of firing guns regularly as they live in urban environments were safe distances are not available. Ban guns no not at all. WE must look to the other emotional and mental problems. There were long warning signs with the Holmes. No one knew how to listen. It was just plain luck his explosive laden apt was discovered otherwise it would have been much worse. Explosives are the main tool used world wide not guns. Explosives kill and main many more and are very indiscriminate.

Kit B (276)
Sunday January 13, 2013, 11:04 am

Yes, guns do require a great deal of education, and constant use on a firing range to make one adept at the use of guns. Few will ever do this unless it is required for professional reasons.. Guns do not make anyone more secure or safer, they do allow for those who are unstable to use them to kill. Beyond the 62 mass murders since 1982, we have thousands killed in domestic violence and street crimes.

Dianna M (16)
Sunday January 13, 2013, 12:54 pm
People keep saying that the proposed ban on assault weapons won't work, and point to the last one as proof. They're only partly right, but there are reason for that. This article explains it better than I can:

Lois Jordan (63)
Sunday January 13, 2013, 4:08 pm
Thanks so much for posting this excellent chart, Kit.
*I'm sorry I'm unable to send a green star to Kit since I sent one in the past week.

greenplanet e (155)
Sunday January 13, 2013, 4:46 pm
If there weren't so many guns, "upset" people couldn't go around shooting others randomly. Guns aren't glamorous, as they are portrayed in the movies and video games.

Winn A (179)
Monday January 14, 2013, 12:20 pm
Owning a gun will not help to stop the gun violence in America.

Arielle S (313)
Monday January 14, 2013, 12:20 pm
It IS a gun problem....yes there are hundreds of contributing factors but easy access to guns is at the crux of it all right now. We can't get the mentally ill taken care of in a few months...we can't change educate everyone overnight...we can't erase the fear just like that. But we can ban killing machines and make mass murder harder.

Yvonne Taylor (37)
Monday January 14, 2013, 1:09 pm
Shakes head, the REAL PROBLEM is the poor mental health care that people without enough money get or never get!

Craig Zimmerman (86)
Tuesday January 15, 2013, 12:10 am
I think guns give their owners a false sense of security. I have read so many articles of gun owners shooting innocent people by mistake.

Pavel Tajc (1)
Saturday January 19, 2013, 5:22 am
All last 14 school shootings had ONE thing in common [something else than guns].
More data here
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