NEW YORK — Fentanyl exposure was confirmed as the cause of the day care center death of a 1-year-old Bronx boy, the city Medical Examiner’s office said Friday. Nicholas Feliz-Dominici’s death was ruled a homicide caused by “acute fentanyl intoxication.” Law enforcement officers on Thursday arrested Felix Herrera, 34, who had fled the country. He was charged in Manhattan Federal Court with his wife, Grei Mendez, and alleged accomplices Carlisto Acevedo Brito and Renny Parra Parades with conspiracy to distribute narcotics resulting in death. Prosecutors say they used the day care on Morris Ave. ...