Tooele County Sheriff's Office
Casey Ray Nielsen

TOOELE — A man with a history of kidnapping and sexually assaulting women has been arrested in Tooele and accused of holding another woman hostage, drugging her and sexually assaulting her.

Casey Ray Nielsen, 36, of Tooele, was booked into the Tooele County Jail Monday night for investigation of aggravated kidnapping, rape, aggravated sexual assault and possession of drug paraphernalia.

A woman, 22, said a man kidnapped her around Thanksgiving. A pillowcase was placed over her head, her hands were tied with a rope and she was taken to a room inside a Tooele house, a police affidavit states.

"The victim stated Mr. Nielsen had a handgun on top of a safe in the room and he was blocking the entry of the room and she was not able to leave," according to the affidavit.

While in the residence, Nielsen gave the woman "several injections of an unknown substance," causing her to not remember what happened next, the report states. When she woke up, police say there was evidence she had been raped.

The woman told investigators that Nielsen, whom she only knew by the moniker "Ogre," would not let her leave.

"Ogre would bring her an orange bucket when she needed to urinate and Ogre would then dump her urine outside," according to a search warrant affidavit filed in 3rd District Court. "The victim stated Ogre gave her several injections of unknown drugs into her arms and one into her left ankle. The victim stated after Ogre would inject her with the unknown drugs she would pass out. The victim stated before she passed out Ogre would take her pants off and underwear off."

The woman escaped on Dec. 6 while driving in a car with Nielsen after "pulling on the steering wheel, causing Mr. Nielsen to crash the car and she was able to run from Mr. Nielsen," the report states.

On Dec. 18, Tooele police returned to the house with a search warrant. Investigators interviewed the homeowner who said she saw the woman in the home and "at some point she saw the victim not wearing her pants and she appeared to be disoriented," according to the affidavit.

When interviewed on Monday, Nielsen claimed the woman was at the residence willingly and he denied assaulting her.

In 2016, Nielsen was arrested and charged with kidnapping a woman at the same address, according to police.

"The victim reported that she escaped a home where she was being held captive," according to charging documents.

The woman told police she was held captive for a couple of weeks before she was able to escape, the charges state.

Nielsen later pleaded guilty to being a restricted person in possession of a firearm and felony drug possession in exchange for the kidnapping charge being dropped. He was given a suspended prison sentence, according to court records.

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In another 2016 case that allegedly happened seven months prior, Nielsen was charged with aggravated kidnapping and object rape of another woman. The state later dismissed the case due to "evidentiary concerns," according to court records. The Salt Lake County District Attorney's Office said the alleged victim in that case moved out of state and stopped contacting prosecutors.

Nielsen's criminal history also includes drug, weapons and theft-related charges dating back 15 years.

The man who allegedly tied up the woman and delivered her to Nielsen had not been arrested or charged as of Tuesday.