Georgia football three-star recruit Marcellus Young Casario dies after 'medical emergency,' high school says

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The college football community is mourning the death of a promising young player.

Marcellus Young Casario, 18, died Friday after what his high school described as a "sudden medical emergency." Casario was rated a three-star recruit and played defensive line.

Casario was from Canada and a senior at Rabun Gap-Nacoochee School, a boarding school in Georgia located roughly 114 miles northeast of Atlanta. The school announced Friday that an unidentified student had died and later postponed a state playoff game scheduled for that night.

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Georgia Bulldogs helmets on the bench during the Georgia Spring game at Sanford Stadium. April 12, 2025, in Athens, Georgia. (Dale Zanine/Imagn Images)

Rabun Gap-Nacoochee School said it followed its emergency response protocols after a boarding student experienced a medical incident Friday morning.

"The boarding student had a medical incident this morning," the school said in a statement post to social media. "Rabun Gap immediately followed our emergency response protocols, and local emergency personnel responded, transferring the student to the hospital."

Casario was later identified as the student. Other details about what led to Friday’s medical emergency were not immediately available.

Casario started playing organized football at an independent boarding school in Aurora, Ontario. In 2025 and shortly before his junior season kicked off, Casario transferred to Rabun Gap-Nacoochee.

DIVISION-II RUNNING BACK PRONOUNCED DEAD AFTER MEDICAL EMERGENCY IN TEAM'S SEASON OPENER

A general view of Dooley Field before the game between the Missouri Tigers and Georgia Bulldogs at Sanford Stadium on Nov. 4, 2023, in Athens, Georgia. (Getty Images)

He did see his dreams of receiving a college football scholarship come true. After visiting Georgia and Michigan State, among other schools, Casario landed offers from Georgia, Miami and Virginia Tech before committing to the Bulldogs on June 15.

"He was everything a coach wants in a player," Rabun Gap-Nacoochee football coach Derek White said in a statement.

A UGA Nike Vapor Elite football sits on the field during the college football game between the Georgia Bulldogs and the Florida Gators at Mercedes-Benz Stadium in Atlanta, Georgia, on Saturday, Oct. 31, 2026. (Icon Sportswire via Getty Images)

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"[Marcellus] truly embodied our mission to 'love one another.' He was known for his relentless dedication, and his journey as a student-athlete was marked by hard work and true brotherhood with his teammates."

ESPN ranked Casario as the No. 49 defensive end in the nation.