An Encina High School sophomore is recovering on Wednesday after a former student stabbed her on campus on the last day of school. Her accused attacker was expelled for stabbing her at school last year, too, according to the Sacramento County Sheriff's Office. The 17-year-old attacker is accused of returning to the high school in the Arden-Arcade neighborhood on Tuesday and stabbing the 16-year-old student at least five times before other students and staff intervened to stop the attack around 10 a.m., the sheriff's office said.