WASHINGTON - A man wanted in an investigation of shots fired near the White House was arrested Wednesday in the state of Pennsylvania, a day after agents discovered two bullets had struck the executive mansion while President Barack Obama was away, the U.S. Secret Service said. --SNIP-- Ortega, 21, was arrested Wednesday afternoon by Pennsylvania authorities at a hotel in the southwest part of the state, the Secret Service said. He was in Pennsylvania State Police custody. A tip from someone who saw and identified Ortega led to his arrest, Secret Service spokesman George Ogilvie said. Sources tell CBS News...