Russia said Wednesday that the second of two pilots on a Russian fighter jet shot down by Turkey was “alive and well” on a Russian base. The other pilot was reportedly killed after they parachuted out of the plane near the Turkish-Syrian border. President Vladimir Putin insisted the aircraft never strayed out of Syrian skies, and called the downing of the plane a “stab in the back.” He said the Turkish were the “terrorists’ accomplices.” Turkey had warned Russia in October after Russian planes twice entered its airspace. NATO urged calm on Tuesday.