PHOENIX – Maricopa County Sheriff’s deputies are working with Knoxville, Tennessee authorities following an investigation into an internet death threat against Sheriff Joe Arpaio.

Deputies served a search warrant at 33-year-old Adam Eugene Cox’s home. A computer and other evidence was seized.

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On Friday, Cox was arrested and taken into custody on an unrelated warrant for assault. He’s being investigated as the prime suspect in the Arpaio death threat investigation.

According to MCSO, Cox’s postings stated that the Sheriff and his family would be killed:

“I plan to kill Arpaio first. He will be filled with a thousand bullet holes before the year is out. I promise you this. He won’t f*** with Obama. He will be buried 10 feet under and his whole family will be murdered along with him.”

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