PUEBLO, Colo. (KKTV) - A man wanted on a warrant out of Pueblo County for child sex assault was arrested in Denver on Thursday, according to the Pueblo County Sheriff’s Office.

Deputies said 29-year-old Thornton man Austin Halderman was taken into custody by both the sheriff’s office and the U.S. Marshal’s Service for sexual assault on a child pattern, sexual exploitation of a child and aggravated incest.

According to deputies, Internet Crimes Against Children detectives and a School Resource Officer began the investigation in August when a resource officer in a District 70 elementary school received a tip about possible child sexual assault.

Deputies said they then uncovered that Halderman had been having relations with the child for at least three years. They said detectives also obta

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