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The boyfriend of a Fairbanks woman found dead inside a Hamilton Acres apartment Sunday has been charged with first-degree murder, tampering with physical evidence and misconduct with a corpse.

A no-bail warrant was issued Thursday for Eric Rustad, 39, according to online court records. Rustad was arrested at 6 p.m. Thursday in connection with the murder of Kristen Marie Huntington, according to a news release issued by Fairbanks police spokeswoman Teal Soden.

Court records show that Huntington was arrested four days before her disappearance and charged with fourth-degree assault for allegedly biting Rustad on the stomach.

According to a criminal complaint filed in Fairbanks court, Fairbanks police responded to Huntington and Rustad's B Street apartment in Hamilton Acres the afternoon of Jan. 4 after Rustad's 9-year-old son reported a physical assault. Huntington told police she bit Rustad in self-defense because he was dragging her around by her hair and throwing her around. When asked when the events happened, Huntington told police Rustad assaulted her two hours before they arrived but said she bit him less than an hour before they arrived. Police did not see signs of disturbance or injury on Huntington's head, and she was arrested for a domestic violence assault.

Rustad told police that he and Huntington had been dating for approximately two years and lived together.

Huntington disappeared four days after her arrest and was reported missing Saturday, two days later. Her body was found Sunday inside a vacant Hamilton Acres apartment.

On Jan. 6, two days after Huntington's arrest and two days before she went missing, Rustad posted on his Facebook page that he was "in a relationship." A women commented on the post Wednesday, saying "What a sick thing to post right after doing what you did. Your child’s own mother now she’ll grow up without a mom."

Another woman commented, "all the time he sat n tried to figure out how to get away with murder, as soon as authorities were on to him, he then attempted to take his life, very few die from slitting their wrists ..."

Fairbanks police will hold a press briefing at 11 a.m. Friday.

Contact staff writer Dorothy Chomicz at 459-7582. Follow her on Twitter: @FDNMcrime.