Aubrey Trail, who is a person of interest in the death and disappearance of Sydney Loofe, has been transferred from the jail where he was being held on unrelated federal charges.
Trail, 51, was transferred to an undisclosed facility Wednesday evening, according to the Saline County Sheriff's Office.
But sheriff's office officials declined to provide further details on where he was being taken or why.
A spokesman for the U.S. Marshal's Service confirmed Trail remains in their custody but wouldn't provide further information.
"The U.S. Marshals Service does not disclose any personal information, location held, court scheduling, transportation details or other inmate information, other than to verify an inmate is in federal custody," Deputy U.S. Marshal Carlos Najera said in an email.
Trail's attorney Korey Reiman said he didn't know where his client was moved.
But he said it's not uncommon for the federal agency to transfer people in their custody between jails where they house federal detainees.
A spokesman for the FBI, which is leading the investigation, referred questions to the U.S. Marshals Service.
Trail's girlfriend, 24-year-old Bailey Boswell, remained at the Saline County jail in Wilber on the same charges.
Both had been held there since Nov. 30 on pretrial detention on federal charges accusing them of transporting stolen property from Hiawatha, Kansas, to Beatrice.
Investigators believe they were the last two people to have seen the 24-year-old Loofe alive on Nov. 15.
Loofe went on a date with Boswell, whom she met on the dating application Tinder, that night.
She was reported missing by her family Nov. 16 after she failed to show up for work.
Her body was found off a country road southeast of Clay Center Dec. 4.
Investigators suspect foul play in her death but haven't provided further detail in the case since a Dec. 5 news conference.
Boswell and Trail remain persons of interest in the case, though no charges have been filed against them in Loofe's death or disappearance, according to an FBI spokesman.