A Barstow High School teacher is out on bail after being arrested amid a probe into an inappropriate relationship she was alleged to be having with an underage student, officials said Monday. Authorities began investigating 51-year-old Katherine O'Neill, of Barstow, after someone came into the local sheriff's station last Thursday to report the teacher was sexually abusing a 16-year-old girl, San Bernardino County sheriff's officials said in a news release. O'Neill has already been on administrative leave since October, deputies said. Before that, she had taught American government and history classes at the high school on First Avenue, according to...