A Highlands Ranch High School student who collapsed in September during a school-sponsored run probably died of cardiac arrhythmia, although no clear heart abnormalities were found, the Arapahoe County coroner said Thursday in an autopsy report.
The body of 15-year-old Quinton F. Sanford showed congestion in the lungs, liver and spleen, but no presence of drugs, medication or other trauma, the Dec. 3 report said.
Sanford had a history of asthma, but the report said his lungs did not show signs of an asthma attack.
Phone calls left for Sanford’s family were not immediately returned.
Sanford, a member of the wrestling and cross-country teams, collapsed Sept. 30 while running with his father in the annual fun run along the High Line Canal.
Sanford — known by his friends as Q-man — was a beloved and popular student.
