Another multiple victim public shooter who supports gun control

Karl Pierson, the 18-year-old Arapahoe High School student who engaged in an attack last Friday, apparently was a strong gun control proponent.  On his Facebook account he wrote: 

“The Republican Party: Health Care: Let ’em Die, Climate Change: Let ’em Die, Gun Violence: Let ’em Die, Women’s Rights: Let ’em Die, More War: Let ’em Die. Is this really the side you want to be on?”

Dylan Klebold's opposition to the concealed handgun law is available in the June 29, 1999 New York Times:

The other father prided himself on being his son's soul mate. They had just spent five days visiting the Arizona campus where the teen-ager planned to enroll in the fall, and recently discussed their shared opposition to a bill in the state legislature that would have made it easier to carry concealed weapons. . . .  

At a parents' meeting on March 27, Sue Klebold bubbled about Dylan's seemingly bright future, Judy Brown said. Mrs. Klebold told her friend that she had tried to talk her son into attending college closer to home than the University of Arizona, ''but he said he was ready.'' . . . .

Former Los Angeles police officer Chris Dorner’s 11,000-word Facebook manifesto called for much stricter gun control measures.  Here is just part of his rant on gun control.  From KTLA.com:

Why does any sportsman need a 30 round magazine for hunting? Why does anyone need a suppressor? Why does anyone need a AR15 rifle? This is the same small arms weapons system utilized in eradicating Al Qaeda, Taliban, and every enemy combatant since the Vietnam war. Don’t give me that crap that its not a select fire or full auto rifle like the DoD uses. That’s (expletive) because troops who carry the M-4/M-16 weapon system for combat ops outside the wire rarely utilize the select fire function when in contact with enemy combatants. The use of select fire probably isn’t even 1% in combat. So in essence, the AR-15 semiautomatic rifle is the same as the M-4/M-16. These do not need to be purchased as easily as walking to your local Walmart or striking the enter key on your keyboard to “add to cart”. All the firearms utilized in my activities are registered to me and were legally purchased at gun stores and private party transfers. All concealable weapons (pistols) were also legally register in my name at police stations or FFL’s. Unfortunately, are you aware that I obtained class III weapons (suppressors) without a background check thru NICS or DROS completely LEGALLY several times? I was able to use a trust account that I created on quicken will maker and a $10 notary charge at a mailbox etc. to obtain them legally. Granted, I am not a felon, nor have a DV misdemeanor conviction or active TRO against me on a NCIC file. I can buy any firearm I want, but should I be able to purchase these class III weapons (SBR’s, and suppressors) without a background check and just a $10 notary signature on a quicken will maker program? The answer is NO. I’m not even a resident of the state i purchased them in. Lock n Load just wanted money so they allow you to purchase class III weapons with just a notarized trust, military ID. Shame on you, Lock n Load. NFA and ATF need new laws and policies that do not allow loopholes such as this. In the end, I hope that you will realize that the small arms I utilize should not be accessed with the ease that I obtained them. Who in there right mind needs a (expletive) silencer!!! who needs a freaking SBR AR15? No one. No more Virginia Tech, Columbine HS, Wisconsin temple, Aurora theatre, Portland malls, Tucson rally, Newtown Sandy Hook. Whether by executive order or thru a bi-partisan congress an assault weapons ban needs to be re-instituted. Period!!! 

Mia Farrow said it best. “Gun control is no longer debatable, it’s not a conversation, its a moral mandate.” . . .

I have seen multiple other similar cases and I will have to put together a complete list.  Anyone want to help save me some time putting the list together?  Please make sure that you have cites to original reputable news sources. At this stage I am making no claims about the percentage of attacks that are done by gun control proponents, and it might not be possible to discern.

Thanks to Gus Cotey for the last link.