An Alaska man who brutally attacked three registered sex offenders — telling one he was an “avenging angel” — says his experience should serve as a deterrent to anyone considering vigilante justice. Jason Vukovich, 42, of Anchorage, is facing up to 25 years in prison after agreeing to plead guilty to first-degree attempted assault and a consolidated count of first-degree robbery in connection to the 2016 attacks. In exchange, prosecutors will drop more than a dozen charges, according to court records obtained by the Anchorage Daily News. In a five-page letter sent to the newspaper in November, Vukovich said he...