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Manhattan Beach, CA (KABC/CNN) - California police are looking for a person they say left a mutilated pig at the front door of Republican campaign office.

You can see them in the video above throwing the carcass in the trash, but they got to it after some people passing by got a good look at it.

"Thought it was a dead body 'cause of the way he approached it, and then when he lifted the shirt he saw the head wrapped in barbed wire, and it's cut in half, the whole skull was, so it looks like something from a butcher's market," said passerby Anthony Gaeta.

Animal control later took the trash bin as evidence.

Police say at this point they are investigating the incident as an illegal dumping of an animal carcass.