Anaconda police arrested a 48-year-old woman for arson in connection with a fire that took place at a residence over the weekend in Anaconda. Kellie Olson was seen at a house that burned in the 200 block of East Front Street in Anaconda Saturday, Police Chief Tim Barkell told The Montana Standard. Police found her and arrested her the next day after she allegedly returned to the house. Barkell said that Olson is a “person of interest” in a fire which gutted the historic 1894 Shields Mansion at 420 Main St. on Friday night.