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Need To Know > World > YouTuber dies after complaining of chest pain during livestream
YouTuber Na Dong-hyun, known as Great Library, has died at 46 after chest pains during a livestream - the Korean influencer had 1.5M subscribers and was a gaming pioneer.
World

YouTuber dies after complaining of chest pain during livestream

Lee Bullen
Last updated: September 9, 2025 1:39 pm
Lee Bullen Published September 9, 2025
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Na Dong-hyun. (Picture: Jam Press)
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A popular YouTuber has died after complaining of chest pains during a livestream.

Na Dong-hyun, better known online as Great Library, was found dead in his home.

The 46-year-old influencer, who had 1.5 million YouTube subscribers and 80,000 Instagram fans, suffered from a heart-related issue, it is reported.

READ MORE: Runaway boar charges cop after crashing into family home

But the results of an autopsy are yet to be released.

He was discovered at his home in Seoul, South Korea, on Saturday (6 Sept) morning.

Police were called after he failed to attend a meeting and did not answer calls.

Officers found no signs of foul play and no suicide note at the scene, as reported by Need To Know.

YouTuber Na Dong-hyun, known as Great Library, has died at 46 after chest pains during a livestream - the Korean influencer had 1.5M subscribers and was a gaming pioneer.
Na Dong-hyun. (Picture: Jam Press)

A police spokesperson said: “There are no signs of homicide or criminal involvement.”

He had complained of chest pains during a recent five-hour livestream with his online community and was last seen attending Seoul Fashion Week just two days before his sudden death.

Investigators are awaiting the final autopsy report to confirm the exact cause of death and whether he had a pre-existing condition.

His funeral took place on Sunday at the funeral hall of Konkuk University Medical Centre.

YouTuber Na Dong-hyun, known as Great Library, has died at 46 after chest pains during a livestream - the Korean influencer had 1.5M subscribers and was a gaming pioneer.
Na Dong-hyun. (Picture: Jam Press)

Great Library, also known as Buzzbean11, had 1.6 billion views on his YouTube channel and was best known for his gaming videos.

He is considered a pioneer of the first generation of Korean influencers.

He was previously married to Yumdang. The couple divorced in 2023 after eight years together.

READ MORE: Missing influencer found alive after cryptic ‘final video’

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