The Dallas Stars said Monday that they have indefinitely banned the fan who purchased the tickets in connection with an investigation into what appeared to be a Nazi salute at a game in December. The fan was banned after the American Airlines Center launched an investigation into four Dallas Stars fans who appeared to repeatedly raise and extend their right arms with a straightened right hand facing downward. An investigation was started after a 12-second clip from the Stars' 5-1 win on Dec. 21 against the Toronto Maple Leafs was amplified last week on numerous social media platforms. "We identified...