RENO, Nev. - A man charged with killing his estranged wife and suspected in the sniper shooting of a judge was in custody early Friday, authorities said. Washoe County District Attorney Dick Gammick confirmed that Darren Mack had been arrested. No further details about where or how he was arrested were immediately released. On Thursday, authorities said Mack, 45, was believed to be on Mexico's west coast and had been spotted previously in Cabo San Lucas and La Paz. Gammick said then that Mack had arranged to turn himself at the U.S. consulate in Puerto Vallarta on Thursday, but failed...