ANNAPOLIS, Md. (WNEW/AP) — Authorities have concluded that a 13-year-old Maryland boy who starred in his family’s popular YouTube show died of a heart condition that commonly causes cardiac arrest in young people.

The Bratayley family, of Anne Arundel County, posted on Facebook that Caleb Logan died Oct. 1 of a heart condition known as hypertrophic cardiomyopathy that went undetected at yearly check-ups.

RELATED: YouTube Star, 13, Dies Suddenly in Anne Arundel County

Caleb starred in his family’s online video series called “Bratayleys,” which has documented the family’s daily life since December 2010. The video has a dedicated young fan base with millions of views.

According to the American Heart Association, hypertrophic cardiomyopathy affects one out of every 500 people.

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