One of the Boy Scout leaders who toppled a boulder at a Utah state park -- while filming the event for YouTube -- had earlier filed a lawsuit claiming permanent disability and impairment from a car accident years ago. NBC's Brian Williams reports.

Two Utah men have been removed as Boy Scout leaders for toppling a boulder from a Jurassic-era rock formation during a field trip to a state park — while singing and videotaping it.

The Utah National Parks Council said Glenn Taylor and Dave Hall had violated the organization's policy of "Leave No Trace" for activities in natural areas.

With a tone of resignation in his voice, Hall said he accepted the decision.

"I love and support the Boy Scouts of America and I don’t blame them one bit for their decision, and I support it," he told NBC News. "We made a mistake and we need to own up to that. They did what they needed to do and we need to make amends.”

Taylor and Hall, who were on a trip to Goblin Valley State Park with eight Boy Scouts, have said they believed the massive rock — estimated to be 170 million years old — was on the verge of falling over on its own, possibly onto an unsuspecting passerby.

Instead of going for help, they decided to take matters into their own hands — and record the moment for posterity.

Salt Lake City authorities are conducting a criminal investigation against Boy Scout leader Glenn Taylor, after a video was posted in which he pushes over a 170 million-year-old rock formation in Utah's Goblin Valley State Park. TODAY's Carson Daly reports.

The video showed them cheering and high-fiving, crowing that they had saved lives. Taylor struck a pro-wrestling strongman pose and Hall sang the 1990 dance-party hit, "Wiggle It."

“We have now modified Goblin Valley,” Hall declared.

The seemingly gleeful performance didn't sit well with the state parks department — or the Boy Scouts, which issued a scolding on Friday.

The Emery County prosecutor is also looking into possible charges against the two men, who said they didn't think they were doing anything wrong at the time.

"We did something right the wrong way," Taylor said last week.

Hall said one of the scouts they were watching could easily have knocked over the boulder by accident.

"I wonder if we just jumped on the rock and it fell, would this be a felony?" he said.

Dave Hall via AP file This frame grab from a video taken by Dave Hall shows two men cheering after a Boy Scouts leader knocked over an ancient Utah desert rock formation at Goblin Valley State Park. Authorities are mulling whether to press charges against the scout leader and against the two men who cheered him on after they posted video of the incident online. (AP Photo/Dave Hall)

Related:

Utah scout leaders who toppled ancient rock: 'We did something right the wrong way'