HOUSTON — John Phillip Hernandez, a 24-year-old unemployed machinist who lived with his parents, walked into a giant sporting goods store here in July 2006, and plunked $2,600 in cash on a glass display counter. A few minutes later, Mr. Hernandez walked out with three military-style rifles. One of those rifles was recovered seven months later in Acapulco, Mexico, where it had been used by drug cartel gunmen to attack the offices of the Guerrero State attorney... (GunPolicy.org)