Here is a look at incidents involving special-needs students in Hillsborough this year:
Jan. 26: Isabella Herrera, 7, dies a day after choking on a school bus ride home from Sessums Elementary in Riverview. No one from the bus called 911 as the girl turned blue and stopped breathing.
Sept. 28: An 8-year-old girl at Tampa Bay Boulevard Elementary breaks her ankle after being pushed off a school bus by the driver. The child had slapped and pushed the driver, who was charged with aggravated child abuse.
Oct. 9: A temporary teacher at Seminole Heights Elementary is charged with child abuse after rubbing a shoe on the face of a 5-year-old boy.
Oct. 23: Jenny Caballero, 11, wanders from a physical education class at Rodgers Middle School and drowns in a nearby pond.