The United States had high incidence of gun-related blood-shed crimes. Statistics showed there were 12,000 gun murders a year in the United States (The New York Times, September 26, 2010). Figures released by the U.S. Department of Justice on October 13, 2010 showed weapons were used in 22 percent of all violent crimes in the United States in 2009, and about 47 percent of robberies were committed with arms (www.ojp.usdoj.gov, October 13, 2010). On March 30, 2010, five men killed four people and seriously injured five others in a deadly drive-by shooting (The Washington Post, April 27, 2010). In April, six separate shootings occurred overnight, leaving 16 total people shot, two fatally (www.myfoxchicago.com). On April 3, a deadly shooting at a restaurant in North Hollywood, Los Angeles, left four people dead and two others wounded (www.nbclosangeles.com, April 4, 2010). One person was killed and 21 others wounded in separate shootings around Chicago roughly between May 29 and 30 (www.chicagobreakingnews.com, May 30, 2010). In June, 52 people were shot at a weekend in Chicago (www.huffingtonpost.com, June 21, 2010). Three police officers were shot dead by assailants in the three months from May to July (Chicago Tribune, July 19, 2010). A total of 303 people were shot and 33 of them were killed in Chicago in the 31 days of July in 2010. Between November 5 and 8, four people were killed and at least five others injured in separate shootings in Oakland (World Journal, November 11, 2010). On November 30, a 15-year-old boy in Marinette County, Wisconsin, took his teacher and 24 classmates hostage at gunpoint (abcNews, November 30, 2010). On January 8, 2011, a deadly rampage critically wounded U.S. Rep. Gabrielle Giffords. Six people were killed and 12 others injured in the attack (Los Angeles Times, January 9, 2011).