TALLAHASSEE, Fla. (AP) — When a 20-year-old opened fire at Florida State University, terrified students barricaded doors and fled across campus, abandoning chemistry notes and even shoes. By early Friday, memorials of candles and flowers dotted the campus and a school-wide vigil had been scheduled as students and faculty tried to start healing from the shooting that investigators said killed two men and wounded at least six others. Investigators say the son of a sheriff’s deputy opened fire with his mother’s former service weapon. Officers who arrived almost immediately shot and wounded the shooter who is believed to be a Florida State student.