EASTHAMPTON — The wife of former Mayor Michael Tautznik has died after falling down a basement staircase.Debra Tautznik, 60, of Easthampton, fell down a set of steps at a business on Cottage Street Saturday afternoon while volunteering at Cultural Chaos, the town cultural festival, Northwestern District Attorney David Sullivan's office said.Tautznik was transported to Baystate Medical Center in Springfield, Mass.