At about 6:45 a.m., fire crews responded to the home in the 4400 block of East Ina Road near north Swan Road. The 3,500-square-foot home was 80 percent involved in smoke and flames when they arrived, said Capt. Grant Cesarek, spokesman for Rural/Metro Fire Department. The fire was so big that smoke could be seen from the area of Davis-Monthan Air Force Base and 911 calls were coming in from midtown Tucson, Cesarek said. A 97-year-old woman was found dead in the burning house. The woman, Larae Hambenne, lived in the home alone, said Deputy Courtney Rodriguez, spokeswoman for the Pima County Sheriff’s Department.