A woman arrested last summer after she was accused of intentionally setting a fire inside the garage of an occupied Hunterdon County home was indicted on additional charges, investigators announced Thursday. A grand jury indicted Onika G. Johnson, 44, of East Amwell, on charges of first-degree attempted murder, four counts of second-degree aggravated arson, three counts of third-degree arson, and two counts of third-degree criminal mischief, according to a release from the Hunterdon County Prosecutor’s Office. Johnson was initially charged in August of last year with attempted murder, aggravat…