Story highlights Mark O'Mara: Fatal shooting rampage in Santa Barbara latest to reflect U.S. violence problem

He says U.S. has vast number of shootings, and the tough part is what to do about it

Responsible gun owners don't want to gut 2nd Amendment, he says, but can't ignore problem

O'Mara: If gun owners don't allow reasonable flexibility, they may soon face over-restriction

Another week in America, another mass shooting.

This time the mayhem was at the hands of a drive-by shooter Friday night, firing at people in Santa Barbara, California. Six dead, 13 others injured, gunman suicide, police say. Officials called the man "severely mentally disturbed."

The rampage comes only weeks after police headed off a Minnesota teen's plans to shoot up his school. According to news reports , John David LaDue allegedly possessed an arsenal (which included homemade bombs) that he allegedly planned to use to slaughter as many students as he could at his high school in rural Minnesota.

Thanks to a civilian tip and good police work, we narrowly escaped a mass shooting then.

On Friday, we were not as lucky.

A friend of mine predicted that the United States would suffer probably 10 such shootings in 2014. I didn't want to believe him, but I knew it would be true.

It turns out we will suffer far more than 10. We've seen a shooting where an assailant targets multiple people somewhere in this country every week this year, according to the website Shootingtracker.com . Only a small number -- such as the recent FedEx shooting in Georgia , or those at Fort Hood, Texas , or Jewish facilities in Kansas -- will gain national attention.

Mark O'Mara

We have a problem with gun violence in this country. I think this much is not in dispute. The real debate is this: What do we do about it? Unfortunately, most answers to this question involve greater governmental regulation and intrusion into our lives.

Americans are fiercely independent, sometimes to a fault, and we bristle at any effort seen as trampling our inalienable rights. But the freedoms guaranteed in our Constitution have never been unfettered. Each amendment in the Bill of Rights has spawned a legacy of case law that interprets, defines, refines and restricts our basic freedoms based on the values and needs of the people at the time.

Here are some examples:

The First Amendment -- our freedom of speech, of expression, of assembly -- is our most fundamental right, but even it is not unrestricted. No matter how strongly we feel, our words cannot be used to incite violence. They cannot be used to further terrorism. We cannot incite panic (shouting "fire" in a crowded theater). We are allowed our freedom of religion, yet we cannot force those religious beliefs on others.

The Fourth Amendment says we are secure in our home, and that the government cannot search and seize our effects and paper without probable cause. While we're free from improper government intrusion, the interpretation of probable cause has loosened over time.

We're free from government intrusion as long as we are not doing something illegal or something that would negatively affect our community. (I can live at peace in my home; I cannot do so with a meth lab.)

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And of course we have amendments that ended slavery and granted universal suffrage.

The Constitution is not written in stone. It evolves as our society evolves. The Second Amendment is more complicated, however, because it deals with issues larger than freedom and oppression; it deals with life and death.

Buried in the Second Amendment is the right to self-defense, the very mechanism that allowed our Founding Fathers to win freedom from tyranny. Some argue it is the right that guarantees all other rights. Our forefathers wanted us to be able to protect ourselves against outside threats, and even from internal tyranny. They may have even intended us to be able to protect ourselves from each other.

It is a stretch to argue they intended guns to be so available, in such strength, that children, high-school populations and co-workers and law enforcement could be so easily slaughtered.

A gun in the hands of a law-abiding citizen is the perfect, unassailable instrument for self-defense and for the protection of one's family. To tell someone who is acting reasonably and rationally that they have to give up that right is unfathomable to the responsible gun owner. That's why gun rights advocates have such a negative response to any perceived restrictions on gun ownership: They know, without question, that they will only use their weapon properly.

But all too often guns are used improperly, without justification, with tragic results. While we have laws preventing convicted felons from legally owning guns, we live in a reality where even properly maintained guns wind up in the wrong hands, where the overly free commerce of firearms virtually assures that some of them will be used by people with criminal intentions.

Gun rights advocates often see a comment like that as an argument for further restriction on their use of weapons, but that's not the way I intend it. I myself am a responsible gun owner. I believe in the right to justified self-defense. I also believe that reasonable restrictions to assure that only law-abiding citizens can purchase firearms better prevents over-restriction of our Second Amendment.

Our Constitution is a resilient force, and our Bill of Rights has survived countless modifications and restrictions without the erosion of fundamental freedoms. Our Second Amendment right is no different: It can survive modification and restriction without the fear that it will vanish altogether.