Popular YouTuber Adam the Woo's cause of death revealed

ORLANDO, Fla. - The cause of death for David Adam Williams, known to many as YouTuber "Adam the Woo," has been revealed more than a month after he was found dead at his home. 

Williams died of natural causes, according to a Medical Examiner’s report released Monday. His death was a result of atherosclerotic and hypertensive cardiovascular disease with obesity being a contributing factor, the report said. 

Williams’ father, Jim Williams, shared a Facebook post on Monday confirming the cause of death.

"Our beloved Son…your beloved friend…died, in essence, of a heart attack in his sleep from health issues he probably never knew he had," Jim Williams wrote. 

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Adam the Woo in a video from his YouTube channel published on December 17. (Courtesy: TheDailyWoo/YouTube)

Williams found inside his Celebration home

Williams, 51, was found dead at his home in Celebration, Florida, on Dec. 22. 

A concerned friend discovered Williams after looking through the window of his bedroom, the Osceola County Sheriff’s Office said at the time. 

"Deputies then responded back to the location for an unattended death at 2:53 p.m.," according to a sheriff’s office release. "A friend had borrowed a ladder and looked in the 3rd story window to see a male on a bed that was not moving. Upon entering the residence with Fire Rescue, the male was reported dead."

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Friends, fans share heartfelt messages

Following his death, fans left flowers, Starbucks cups and heartfelt messages outside his home. 

Fellow theme park vloggers and friends also paid tribute to him online.

"He really will live forever, because I will never forget him," wrote The Tim Tracker. 

"We lost Adam the Woo today," wrote Fresh Baked!, a YouTuber who covers Disneyland. "He was the best of us. Always kind. Incredibly generous."

YouTube pioneer

William, considered a pioneer in vlogging, began posting videos to YouTube in 2009 with his channel Adam The Woo. The channel featured videos about abandoned sites around Central Florida.

After gaining a following, Williams created a second channel, The Daily Woo, and posted vlogs documenting his travels and visits to theme parks around the world.

Between the two channels, Willams had gained over a million subscribers.

In the last video posted to his YouTube channel, Williams highlighted the holiday decorations around downtown Celebration.