Los Angeles police: 2 young men arrested in shooting deaths of Chinese students near college .      Facebook debut as a public company fails to sizzle as stock closes nearly flat .      Los Angeles police: 2 arrests in shooting deaths of Chinese graduate students near USC campus .      Iguodala, Turner spark second-half surge in Game 4 and help 76ers top Celtics 92-83 .      'Da Vinci Code' author Dan Brown speaks, says writing under way on next novel .      Samuelsson goal lifts Oil Kings to 4-3 win over Cataractes at Memorial Cup .      Two for the show: Arencibia, Davis each go deep twice as Blue Jays hammer Mets .      Molotov cocktails launched at Montreal protest following Quebec crackdown law .      Saskatoon considering red light district, but councillor says not in his riding .      Justin Verlander nearly throws 3rd career no-hitter, Tigers blank Pirates 6-0 .