A few weeks before the incident that would take her life, Desiree Bragg discussed her infant son’s prospective education with her mother.Bragg, 19, went to Bethlehem Lutheran School on Mountain Street and told her mother she wanted her son to go there, too. Her mother, Wrenetta Nadon, and the rest of Bragg’s family are trying to collect funds to help send infant Tristan to his mother’s alma mater. Bragg’s other alma mater, the Paul Mitchell beauty school in Reno, is putting on a Cut-A-Thon from 9 a.m. to 3 p.m. Monday at 1600 Holcomb Ave. to raise funds for Tristan’s …