The assertion that “banning guns would stop the criminals” has a major flaw

Well here is a fact, folks: "Don't outlaw guns, outlaw the criminals ... it's the criminals who get guns and kill people. If we ban guns, the only people who will have them are the criminals." 
Well, maybe that wouldn't be so bad, based on history: Think about it. 
James Holmes was not a criminal, just a 24 year old with no major criminal history, with an arsenal at his home. He killed 12 and injured 71. 
There was Seung-Hui Cho, who shot and killed 32 people and wounded 17 people in 2007 at Virginia Tech. He wasn't a criminal, just an Asian American college kid. 
John Hinckley, Jr.'s shot Reagan, Brady and Orland's Police Chief Tim McCarthy on March 30, 1981. He wasn't a criminal, but he got a hold of a gun. 
The two kids at Columbine High school in 1999 in Columbine, Colorado were not criminals. But they got a hold of an arsenal of weapons. 
On Jan. 8, 2011, Jared Lee Loughner killed six and wounded at least 12, including then-Rep. Gabrielle Giffords, outside a grocery store in Tucson, Ariz. He wasn't a criminal either. 
On Nov. 5, 2009, Major Nidal Hasan, a psychologist with the U.S. Army, killed 13 soldiers and wounded 42 others at a base in Fort Hood, Texas. He wasn't a criminal and was authorized to have a legal weapon. 
On April 3, 2009 Jiverly Wong, 42, burst into a citizenship class at an immigration center in Binghamton, N.Y., and killed 13 and wounded four, before he killed himself. He wasn't a criminal.
On March 30, 2009, a gunman shot eight people to death and wounded several others at a nursing home in North Carolina. Most of those killed were elderly nursing home patients. The suspect did not have a criminal past.
On March 29, 2009, a man killed five of his family members, including his two children, and wounded his wife at a townhome in Santa Clara, Calif., before killing himself.
On March 10, 2009, Michael McLendon, 28, killed several of his family members including his mother and grandparents, and then went on a rampage killing 10 people in several towns in Alabama before killing himself.
On Dec. 24, 2008,  Bruce Jeffrey Pardo, 45, dressed up in a Santa suit and showed up at a Christmas party at his ex-wife’s parents’ house in Covina, Calif., and killed nine people to death. He then burned the house and then killed himself.
On Feb. 14, 2008, a former graduate student at Northern Illinois University in DeKalb, Ill., killed five students in a lecture hall, and wounded many others, before shooting himself.
This is just a partial list of the mass murders that have taken place. There are two dozen more I can cite. In EVERY CASE, the killers were NOT CRIMINALS, but regular people who got a hold of a weapon and then went on a murder spree.
It isn't just "criminals" who we have to stop from getting guns.
The 2nd Amendment was written for a different world, and there's no reason why it can't be changed to protect our rights in today's world.
-- Ray Hananiawww.hanania.com
(Some of the chronology data above is from WKBT News in LaCrosse, Wisconsin.)