53-year-old Talina Galloway was reported missing by her roommate, Kore Bommeli, on April 17.
According to Bommeli, Galloway had contracted coronavirus and left town.
On Wednesday, the Wagoner County Sheriff Chris Elliot named Kore Bommeli as a person of interest in Galloway's disappearance.
The case is now being called a "missing person with special circumstance."
A probable cause affidavit said investigators found what is believed to be blood in the garage and a bedroom of the home Bommeli shared with Galloway.
The affidavit provided by the Wagoner County Sheriff's office stated, "A search of Kore's cellular phone shows she was performing internet searches for ways to get blood out of concrete and wood."
Investigators also recovered a trailer that was owned by Galloway.
The affidavit states Bommeli attempted to hide the trailer at a friend's house, then at a storage facility.
The trailer is now being processed for evidence by the Oklahoma State Bureau of Investigations.
The affidavit also said Talina's driver's license was found cut into piece inside a storage unit in Edmond, Oklahoma rented by Kore Bommeli.
Stay in touch with us anytime, anywhere.
Sign up for newsletters emailed to your inbox. Select from these options: Breaking News, Severe Weather, School Closings, Daily Headlines and Daily Forecasts.