(WILMINGTON, Del.) -- The Delaware Department of Justice has filed criminal charges against three students at Howard High School of Technology in Wilmington, Delaware following a fight last month that led to the death of another student.
The medical examiner ruled that Amy Joyner-Francis died due to sudden cardiac trauma because of a pre-existing condition.
Three girls were charged and all are minors. One teen, who was identified as the only girl to hit Joyner-Francis in the planned confrontation, was charged with criminally negligent homicide. The other two girls were charged with third degree criminal conspiracy in connection with the incident.
ABC News is not identifying any of the three girls as they are minors. The Delaware DOJ said in a statement it was seeking permission to try the teen charged with criminally negligent homicide as an adult "because of the severity of her offense."
The Delaware DOJ also said while Joyner-Francis did not suffer any serious internal or blunt force injuries from the assault, "the cardiac incident would not have occurred if she had not been assaulted."
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