Investors Business Daily explain why it happened twice in the same place.

Excerpt:

Another tragedy at Fort Hood is compounded by the absurdity of well-trained and disciplined soldiers told to “shelter in place” until the police arrive.

[..]It is… a grim echo of its predecessor, which was an act of terrorism called “workplace violence.” And to this day, the commander in chief calls Maj. Nidal Hasan’s Nov. 5, 2009, rampage in which 13 were murdered and 32 wounded “workplace violence.”

In that tragedy, Hasan, a self-proclaimed “Soldier of Allah,” shouted “Allahu Akhbar” and opened fire on dozens of U.S. civilians and soldiers who were unarmed and unable to fire back. Then, as now and in the Sept. 16, 2013, mass shooting at the Washington Navy Yard, military personnel trained to defend themselves were unable to do so and had to wait until the police arrived.

[…]Because of the nonsensical policy, terrorists or the mentally unstable would face more return fire if they began shooting at a Texas Wal-Mart than they would face at Fort Hood, home of the heavily armed and feared 1st Cavalry Division. During the second attack in five years at Fort Hood, soldiers were again forced to run from a violent and armed perpetrator.

I would say that there would not even be any attacks at Fort Hood if people were allowed to concealed carry their own firearms. Who the heck would be stupid enough to start shooting an an army post if the people there could actually carry weapons?

This article from National Review shows that multiple-victim public shootings are common in gun-free zones.

Excerpt:

Gun-free zones have been the most popular response to previous mass killings. But many law-enforcement officials say they are actually counterproductive. “Guns are already banned in schools. That is why the shootings happen in schools. A school is a ‘helpless-victim zone,’” says Richard Mack, a former Arizona sheriff. “Preventing any adult at a school from having access to a firearm eliminates any chance the killer can be stopped in time to prevent a rampage,” Jim Kouri, the public-information officer of the National Association of Chiefs of Police, told me earlier this year at the time of the Aurora, Colo., Batman-movie shooting. Indeed, there have been many instances — from the high-school shooting by Luke Woodham in Mississippi, to the New Life Church shooting in Colorado Springs, Colo. — where a killer has been stopped after someone got a gun from a parked car or elsewhere and confronted the shooter.

Economists John Lott and William Landes conducted a groundbreaking study in 1999, and found that a common theme of mass shootings is that they occur in places where guns are banned and killers know everyone will be unarmed, such as shopping malls and schools.

I spoke with Lott after the Newtown shooting, and he confirmed that nothing has changed to alter his findings. He noted that the Aurora shooter, who killed twelve people earlier this year, had a choice of seven movie theaters that were showing the Batman movie he was obsessed with. All were within a 20-minute drive of his home. The Cinemark Theater the killer ultimately chose wasn’t the closest, but it was the only one that posted signs saying it banned concealed handguns carried by law-abiding individuals. All of the other theaters allowed the approximately 4 percent of Colorado adults who have a concealed-handgun permit to enter with their weapons.

“Disarming law-abiding citizens leaves them as sitting ducks,” Lott told me. “A couple hundred people were in the Cinemark Theater when the killer arrived. There is an extremely high probability that one or more of them would have had a legal concealed handgun with him if they had not been banned.”

Lott offers a final damning statistic: “With just one single exception, the attack on congresswoman Gabrielle Giffords in Tucson in 2011, every public shooting since at least 1950 in the U.S. in which more than three people have been killed has taken place where citizens are not allowed to carry guns.”

There is no evidence that private holders of concealed-carry permits (which are either easy to obtain or not even required in more than 40 states) are any more irresponsible with firearms than the police. According to a 2005 to 2007 study by researchers at the University of Wisconsin and Bowling Green State University, police nationwide were convicted of firearms violations at least at a 0.002 percent annual rate. That’s about the same rate as holders of carry permits in the states with “shall issue” laws.

Here’s Dr. John R. Lott to explain why gun-free zones should really be called “helpless victim zones”.

Excerpt:

Contrary to public perception, Western Europe, most of whose countries have much tougher gun laws than the United States, has experienced many of the worst multiple-victim public shootings. Particularly telling, all the multiple-victim public shootings in Western Europe have occurred in places where civilians are not permitted to carry guns. The same is true in the United States: All the public shootings in which more than three people have been killed have occurred in places where civilians may not legally bring guns.

Look at recent history. Where have the worst K–12 school shootings occurred? Nearly all of them in Europe. The very worst one occurred in a high school in Erfurt, Germany, in 2002, where 18 were killed. The second-worst took place in Dunblane, Scotland, in 1996, where 16 kindergartners and their teacher were killed. The third-worst, with 15 dead, happened in Winnenden, Germany. The fourth-worst was in the U.S. — Columbine High School in 1999, leaving 13 dead. The fifth-worst, with eleven murdered, occurred in Emsdetten, Germany.

It may be a surprise to those who believe in gun control that Germany was home to three of the five worst attacks. Though not quite as tight as the U.K.’s regulations, Germany’s gun-control laws are some of the most restrictive in Europe. German gun licenses are valid for only three years, and to obtain one, the person must demonstrate such hard-to-define characteristics as trustworthiness, and must also convince authorities that he needs a gun. This is on top of prohibitions on gun ownership for those with mental disorders, drug or alcohol addictions, violent or aggressive tendencies, or felony convictions.

The phenomenon is not limited to school attacks. Multiple-victim public shootings in general appear to be at least as common in Western Europe as they are here.

Dr. Lott then lists about two dozen incidents – all occurring in gun free zones.