ANCHORAGE, Alaska (AP) — A stunning tale of inappropriate behavior between a politician and a television anchor, death threats and nude photos culminated in a joint police and FBI investigation, the arrest of the journalist and the resignation of the mayor of Anchorage.

Ethan Berkowitz, the top elected Democrat in Alaska, submitted his resignation to the Anchorage Assembly on Tuesday night, just days after he vehemently denied allegations by YourAlaskaLink anchor Maria Athens that he had posted nude photos of himself on an underage website.

The mayor's resignation followed Berkowitz's jaw...