Guns in the hands of violent mentally disturbed men and 30-round magazines are the common elements of all mass killings. Had the psychiatrists treating the Virginia Tech killer and the Aurora theater shooter reported them to the nation's no-buy list, neither would have been able to buy their arsenals online and the shootings would not have happened.
The massacres at Sandy Hook, Virginia Tech, Aurora and Tucson would have been much smaller had the shooters been restricted to 10-round magazines instead of 33- or 100-round drum magazines they used.
The only purpose for 33-round or 100-round magazines is to kill a lot of men, women and children.
- William Peterson, North Liberty, retired U.S. Marine Corps colonel