A Rochester woman has been charged with arson for setting a fire next to an apartment building at 12 Kestrel Street. Arson investigators say the Rochester Fire Department arrived to find a small fire next to the converted house that an occupant was trying to put out with a garden hose. Fire investigators determined it was intentionally set, and determined that 26-year-old Keyoni Adams of Rochester was the culprit.Investigators say Adams was having a dispute with a resident of the house. Two families with children lived in the building at the time.