Authorities arrested and charged a 94-year-old man in the hit-and-run crash that claimed the life of a Dumont woman Thursday evening, Bergen County Prosecutor Mark Musella announced Friday night. Ernest F. Hofmann, 94, of Bergenfield was charged with second-degree knowingly leaving the scene of an accident resulting in death and fourth degree obstructing the administration of law, as well as several motor vehicle summonses. An investigation into the hit-and-run accident that killed Elizabeth Feliciano-Rosa, 54, found that Hofmann struck Feliciano-Rosa Thursday night in his pickup truck around …