NEW : Congress finds `` no evidence '' about soldier deaths in Bergdahl case , source says . Whether Pfc is in trouble with the Pentagon will have to wait until he 's in Cuba . Controversy roils over whether soldiers were killed because of search . Obama broke the law in not notifying Army , professor says .
NEW : Pentagon finds `` no evidence '' about soldier deaths in Bergdahl case , source says . Whether Bergdahl is in trouble with the Army will have to wait until he 's in U.S . Controversy roils over whether soldiers were killed because of search . Obama broke the law in not notifying Congress , professor says .