Maricopa County Sheriff Joe Arpaio might want to watch his back -- and his Facebook feed.

Ignacio Carbajal, an Arizona resident, was arrested Tuesday after he posted a statement on Facebook threatening to kill Arpaio, CBS 5 Arizona reported.

Carbajal posted the statement to a page titled "People Against Sheriff Joe Arpaio" and told authorities that Arpaio's "stance on illegal immigration drove him to want to kill the sheriff," according to The Arizona Republic.

Arpaio has aggressively deported undocumented immigrants in the past and has been sued for racial profiling and other civil rights violations. In July, an Arizona inmate plotted to assassinate the sheriff.

The Maricopa Country sheriff has also attracted attention over his position on gun control. After the Newtown tragedy, he deployed a volunteer "posse" of armed guards to protect schools.

Also on HuffPost:

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  • Maricopa County Employees Call Latinos Derogatory Names

    Jail employees frequently refer to Latinos as "wetbacks," "Mexican bitches," and "stupid Mexicans," according to the lawsuit. An email that included a photography of a Chihahua dressed in swimming gear with the caption "A Rare Photo of a Mexican Navy Seal" was widely distributed by sheriff's office supervisors.

  • Officers Mistreat Latinos In Routine Traffic Enforcement

    The lawsuit recounts how a Latina woman who was five-months pregnant and a U.S. citizen was stopped as she pulled into the driveway. "After she exited her car, the officer then insisted that she sit on the hood of the car. When she refused, the officer grabbed her arms, puled them behind her back, and slammed her, stomach first, into the vehicle three times. He then dragged her to the patrol car and shoved her into the backseat," reads the complaint. She was cited for failure to provide identification, which was later changed to failure to provide proof of insurance. The issue was resolved when the woman proved she had insurance to a court. In yet another case, two officers followed a Latina U.S. citizen a quarter of a mile to her home without flashing their lights. When she arrived home, they insisted that she stay in the car. The reason for the stop was a "non-functioning license plate light." After she tried to enter her home, officers took her to the ground, kneed her in the back and handcuffed her. She was brought to a Maricopa County Sheriff's Office (MCSO) substation and cited for "disorderly conduct," which was later dismissed, according to the lawsuit.

  • Latinos Are Indiscriminately Detained In Immigration Raids

    A Latina born in the United States was taken into custody for four hours in a raid to determine her immigration status. Arpaio was quoted in response, "That's just normal police work. You sometimes take people in for probable cause for questioning and they're released." The suit notes that the reason for her detainment -- being Latina and present during a raid -- were insufficient.

  • Arpaio And MCSO Staff Foster Discrimination Against Latinos

    Arpaio received a letter reading, "If you have dark skin, then you have dark skin. Unfortunately, that is the look of the Mexican illegals who are here illegally. ... I'm begging you to come over ... and round them all up." The sheriff labeled this as "intelligence" and forwarded to his deputy chief of enforcement operations for someone to "handle this." Upon receiving a letter backing the policy of "stopping Mexicans to make sure they are legal," he sent a letter of appreciation to the authors and kept three copies for himself, according to the lawsuit. An email circulated among MCSO staff had an image of a fake driver's license from "Mexifornia" and listed the driver's class as "illegal alien."

  • MCSO Employees Fail To Provide Assistance To Prisoners With Limited English

    The failure to provide adequate language assistance caused some female Latina prisoners to remain with sheets or pants soiled from menstruation, alleges the suit. Others have allegedly been put in solitary confinement for "extended periods of time" for not understanding a command in English.

  • MCSO Arrests Arpaio Critics Expressing Their First Amendment Rights

    The suit claims on multiple occasions that people were arrested for merely applauding against the office's immigration policies. The judge presiding over the case of the arrestees found that the deputy who made the arrest "believes it is his role to make uncomfortable anyone who express[es] views that disagree with the sheriff" and that he had "trampled" over the First Amendment. The court acquitted them.