Boyfriend of Missing Girl's Mom Said to Have Compared Hurting a Child to 'Killing a Deer'

Hailey Dunn, a student and cheerleader at Colorado City Middle School in Colorado City, Texas, was reported missing on Dec. 28, 2010. (Colorado City Police Department).

Hailey Dunn, a student and cheerleader at Colorado City Middle School in Colorado City, Texas, was reported missing on Dec. 28, 2010. (Colorado City Police Department).

After a 13-year-old Texas girl disappeared last month, her mother's live-in boyfriend remarked to a relative that hurting a teenager would be "like killing a deer," according to a police affidavit filed in the investigation.

The affidavit, seeking phone records of missing Hailey Dunn's mother and the mother's boyfriend, also notes that the couple had an apparent fixation on slasher movies and serial killers -- something the mother, Billie Dunn, called a "hobby."

Hailey, a student and cheerleader at Colorado City Middle School, was thought to be spending the night at a nearby friend's home but was reported missing the next day, on Dec. 27, by her mother when she did not return to their Colorado City home. The boyfriend, Shawn Casey Adkins, had been living with them at the time.

Peter Kampfer, the city manager, told that the information in the affidavit would suggest that Adkins is a suspect in the case, but the investigation is ongoing.

“There are a lot of suspects in the case,” said Kampfer, who has been speaking to the media for the police. 

The affidavit shows that an uncle of Hailey's told police that after the girl vanished he asked Adkins how anyone could hurt a teenager. Adkins reportedly responded, “It’s like killing a deer.”

Adkins did not respond to a phone message Wednesday seeking comment for this story.

The details of the police investigation were part of an affidavit seeking a warrant for phone records that police hope will provide details on the couple's whereabouts in the days after Hailey's disappearance. Investigators have noted several inconsistencies in their stories.

Adkins and Billie Dunn have both failed polygraph tests, the affidavit says.

Billie Dunn attempted two. The first was a no-go because she was thought to be under the influence of narcotics, police said, and when she failed the second test she walked out of the room.

Adkins volunteered for three tests. He walked out of the first two, and he failed part of the third one, police said, but he also said the girl could be found in Scurry County, Texas—the same place where the couple withdrew money from an ATM the night Hailey is said to have disappeared. Billie Dunn told investigators that the money was intended for narcotics, according to the affidavit.

The affidavit also notes that in February 2010, police responded to a domestic violence call at the house. Adkins allegedly threatened to kill his girlfriend and Hailey Dunn during a heated argument. After telling police he never issued these threats, he later allegedly confessed to police that he threatened the two.

Investigators also say they found a box in the home containing documents printed about serial killers, sexual sadists and murderers. One 29-page copy was about an Iowa family brutally killed with an ax. Billie Dunn called this papers a “hobby,” according to the affidavit.

And Adkins appears confused in the affidavit. In one instance, he told investigators that he was fired from his job the day the girl disappeared. Then he backtracked and said he quit his job after a confrontation with a manager. When investigators contacted his employer, they were told Adkins was a good employee and was never fired.