Detectives were investigating racially biased Instagram posts by a Glen Rock High School student when the teenage bigot struck again, this time targeting another classmate over gender identity on Zoom, authorities said. Detectives were a month into their investigation of racial bias when administrators at the high school showed them “questionable comments” entered during a school Zoom session, Police Chief Dean Ackermann said. The comment “appeared to target another student over their gender identity,” the chief said Monday. Using information provided by the teenage victims and the school’s IT department, Detective Sgt. Jim Calaski and Detective Lucas Doney identified the...