Utter nonsense. Did Jeanne Assam needed machine gun to prevent Matthew Murray from killing 100 people in Colorado New Life church shooting? Did she kill few dozen collateral casualties? Fortunately, New Life church wasn't "gun-free zone" like Aurora theater.
U.S., allies conduct 1 air strike in Syria and 11 in Iraq against ISIS militants (Reuters)
from the article: Why the United States won't control guns