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SAN DIEGO — A video posted to YouTube appears to solve the mystery of who turned a San Diego freeway sign into an anti-SeaWorld message back in May.

The video, posted by Steve-O, a member of the crew that produced the Jackass movies, shows him and several others scaling a freeway sign on Interstate 5 and changing “Sea World Drive” to “Sea World Sucks.”

“I’m putting my foot down for Shamu,” the stunt performer and television personality,whose real name is Steve Glover, says at the beginning of the video, .

The video shows Glover taping over the word “Drive” with a preprinted sign that says “Sucks.”

At the end of the video, he says, “If doing that was wrong, I don’t want to be right! Screw you, SeaWorld!”

Glover’s comment below the video says, “Be an awesome person by sharing this video with the hashtag #SeaWorldSucks and wish me luck with the law!”

Caltrans released the following statement about Steve-O’s video confession.

“We consider defacing public property at a cost to state taxpayers  an unlawful act and a dangerous distraction for motorists.  We will refer all information to the California Highway Patrol.”

Fox 5 photographers captured Steve-O at the scene of the crime months ago, but at the time he denied any involvement. Now, the CHP is weighing possible charges against the stunt performer.