2012/07/23 Headlines: Thousands Remember Shooting Victims in Aurora; Shooting Suspect Amassed Large Arsenal Through Online Purchases; Obama Admin Dismisses Talk of New Gun Control Laws; Anaheim Police Kill 2 Latinos, Wound Protesting Residents; At Least 93 Killed in Iraq Violence; Syrian Forces Retake Damascus District; Assad Offered Safe Passage; 3 U.S. Contractors Killed in Afghanistan; Norway Marks 1-Year Anniversary of Shooting Massacre; International AIDS Conference Opens in D.C.; AIDS Activists Protest Sex Worker Ban; Sex Worker Conference Begins in India; Thousands Protest Nieto in Mexico; Penn State Removes Paterno Statue over Molestation Cover-Up; Publisher, Columnist Alexander Cockburn Dies at 71;$