The mystery surrounding ownership of the Las Vegas Review-Journal, Nevada’s largest news outlet, finally reached a conclusion. Casino magnate and Republican mega-donor Sheldon Adelson, the Chairman and CEO of Las Vegas Sands Corp., officially confirmed that his family was the force behind the $140 million purchase. The announcement ended a period of intense scrutiny and unease within the journalism community. The secrecy triggered an “avalanche of criticism” from media ethicists and the paper’s own reporters, who spent days investigating their anonymous employer. Many voiced concerns that a clandestine owner—especially one with significant political and business interests in the region—could compromise…