A gunman and one victim are dead, another person injured after a workplace shooting at Ohio State University.College officials say an employee shot two co-workers in a campus maintenance building and then fatally shot himself.University police chief Paul Denton identified the suspect as 51-year-old Nathanial Brown, a custodial employee.Denton says brown recently received a poor performance evaluation, but he declined to say if that was a motive for the shooting.No students were hurt.