Squirrel beheaded

Giant white bunny loses his head as he drives under an ad billboard. A presentation of the Just For Laughs Gags. The funny hidden .\r
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I really hate those arrogant tree rats. Arrogant thieves! This one was already dead when I found it but better be absolutely sure about that! The verdict is guilty!\r
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via YouTube Capture.\r
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This video was uploaded from an Android phone.\r
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Anyone have a clue what this might be? Human (early serial killer or intimidation?) or animal (cats / coyotes?)