14-year-old Knox MacEwen collapsed and died on November 4, 2023, while running a 5K in Florida, NBC 6 South Florida reports.

Knox was a member of the Junior Reserve Officers’ Training Corps (JROTC) program at his Western High School in Davie, Florida.

Unfortunately, his young life was cut short after her suffered a cardiac arrest while participating in a 5K held by the program.

As per NBC Miami, the young boy was transported to Memorial Hospital Miramar where he was later pronounced dead.

“I am saddened to share tragic news impacting our Wildcat community. One of our JROTC students passed away this morning after being transported to the hospital,” the school’s principal, Jimmy Arrojo, said in a message to students, families and staff. “I want to offer my deepest condolences to his family and loved ones, teachers, and classmates as they mourn this great loss.”

He continued, “I ask our Wildcat community to rally around the family in prayer and support during this time of deep sorrow. Please know that grief counselors will be available on campus this week to meet with anyone needing assistance or support.”