Shortly before 9 p.m. on Tuesday, June 18, police and fire were called to Fox Mill Elementary School at 2611 Viking Drive in Herndon.
First responders arrived and located four juvenile males: three 14-year-olds and one 15-year-old. One of the 14-year-olds had inadvertently come into contact with a live electrical wire and was electrocuted. He was pronounced dead on scene.
Detectives have identified the victim in this incident as 14-year-old Bennett James Rill of Oak Hill.
The Office of the Chief Medical Examiner will make final determination as to cause and manner of death.
The remaining boys were transported to Inova Fairfax Hospital with non life-threatening injuries.
There does not appear to have been an attempt to enter the school.
Homicide detectives and crime scene technicians responded to the scene. The investigation is continuing.