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PIKESVILLE, Md. -- There's a video circulating online of what appears to be a Browns fan urinating on the grave of former Browns owner Art Modell.

Now, Baltimore authorities have started an investigation.

They don't know when this video was made, but they know when the video was posted and the online user name.

The fan can be heard saying he had "no choice" because Modell "tried to kill" the Browns when he moved the original team to Baltimore 18 years ago.

The video, which was originally uploaded to YouTube, has since been removed. Deadspin.com, however, still has the footage, which you can watch HERE: http://deadsp.in/1nEdijG.

Modell died in 2012.

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