The Guiding Hands School student, whose identity has not been made public, had severe autism, according to the El Dorado Sheriff’s Office. The student reportedly became violent in class on Nov. 28, which led to school staff members then restraining him from harming other students. While being restrained, the 6-foot-tall 280-pound teen became unresponsive and 911 was called, the sheriff’s office said in a statement on its Facebook page.