CBS News) More information about the firearms used in the deadly shooting in Aurora, Colo. during the midnight "Dark Knight Rises" screening has come to light. A law enforcement source close to the investigation told CBS News that all the guns were purchased within the last six months, which is considered a "short time to the crime." The guns were all purchased legally between May 22 and July 6 at three Colorado gun stores. James Holmes purchased a Smith and Wesson .233 high powered semi-automatic rifle at Gander Mountain gun store in Thornton, Colo, according to the law enforcement source....
