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A teenaged girl put up a bloody fight before she was killed and dumped in the Jordan River last month, according to court records.

New revelations surrounding the slaying of 15-year-old Anne Kasprzak came Tuesday as two search warrants connected with her death were made public in 3rd District Court.

The warrants also shed additional light on what led police to arrest two men, Daniel Robert Lehi Ferry, 31, and Veanuia Vehekite, 30, on suspicion of murder.

Ferry, according to the search warrants, has maintained he had nothing to do with the teen's death.

Meanwhile, a month has passed since Anne was killed, but prosecutors have not charged anyone with the slaying. Both Ferry and Vehekite remained behind bars Tuesday on unrelated charges.

"We're obviously investigating the matter," said Blake Nakamura, a Salt Lake County District Attorney chief deputy. "We're still considering the charges. Because it is still an open investigation and charges have not been filed, we don't want to comment on any particulars in this case."

Authorities found Anne's body on March 11 after a passer-by spotted blood and a shoe near a footbridge over the Jordan River near 12600 South in Draper.

The girl's face was so badly beaten that she was nearly unrecognizable and investigators had to use scars, clothing and cosmetic dentistry to identify her, the search warrants say. Anne had a fingernail that was pushed back and she appeared to have defensive wounds on her hands, the warrant shows. Investigators hope the girl got some of her killer's DNA on her hands during the struggle, the warrants state.

Anne's family said they last saw her alive the night of March 10, when she went to her bedroom to listen to music. At some point, she apparently sneaked out and her family reported her as a runaway. Before Anne left her Riverton home, she spent about 30 minutes talking on her cell phone to people with unavailable phone numbers, the warrants state.

The warrants say Anne arrived at Ferry's Sandy home with a man identified only as "L.J."

A witness told police Anne had left a Riverton High School letter jacket there one week earlier, according to the warrants.

The witness told police that Ferry made a sexual advance toward Anne, the warrants state. But when Anne laughed at him and told him, "No," the witness alleges that Ferry grabbed Anne and "smashed" her head into the wall, knocking her unconscious, the warrants state.

Police allege Ferry, Vehekite and L.J., who has not been arrested, moved the girl into the garage, where they changed her clothes, placed her in a tarp and put her into a vehicle parked out front.

"A couple of hours later," the three returned to Ferry's home and "they all had blood on their clothing," the witness told police.

When the witness asked what happened to Anne, Ferry allegedly said "she went swimming" and that "she put up one hell of a fight," according to the warrants. They also talked about losing her shoe, according to the warrant.

When police served the search warrant at Ferry's home, they collected items that "appeared to be consistent" with the story told by the witness, including two couch cushions and 21 swabs. Police also said it appeared someone had tried to clean up the home. Someone had torn out carpet in the home's hallway and living room three days after the slaying, the warrants state.

Police also collected shoes and clothing Ferry had been wearing from the Salt Lake County jail, according to the search warrants.

Utah court records show Ferry is an ex-con who is currently charged with multiple counts of drug possession with intent to distribute. He is currently serving a 30-day jail term for outstanding traffic violations. Vehekite has a history involving drugs and weapons crimes.

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