A Little Egg Harbor Township man was arrested Friday on arson charges after investigators allegedly discovered he set off fires three times at a vacant home in Ocean County. Steven Johnson, 36, was charged with three counts of second-degree aggravated arson for the fires that occurred in the past week at a property he lived next to in Little Egg Harbor, the Ocean County Prosecutor’s Office announced Saturday. Authorities were first dispatched to the vacant residence on Revolutionary Road on Jan. 6 at around 1:30 a.m for the report of a fire, officials said. They later determined that someone h…