Grant Thompson, a YouTube host known for the popular channel “The King of Random,” died in a paragliding accident in Utah this week, his family announced.

The authorities in Washington County responded to a call of an “overdue” pilot Monday evening after someone had tried to reach Mr. Thompson on his cellphone, according to a Facebook post by the Washington County Sheriff’s Office.

The caller, who was not immediately identified, provided the last known GPS coordinates of Mr. Thompson as of 9 p.m. local time on Monday. Several volunteers gathered and, with the help of a helicopter, they located his body.

“Detectives were able to recover the paragliding equipment along with a video recording device,” the Facebook post said. “We are currently reviewing the video to determine factors which led to the aircraft crash.”