After two days of searching, volunteers and law enforcement have not turned up anything that would lead them to find 27-year-old Danielle Jelinek.
The Oakdale woman was last seen early Sunday morning by her on-again, off-again boyfriend 28-year-old Aaron Schnagl at his home in Chisago Lake Township.
The Chisago County Sheriff's Office is now describing Schnagl as a person of interest in the case.
New details released in search warrants obtained by FOX9 describe the events leading up to Jelinek's disappearance.
According to the documents, Schnagl told investigators he and Jelinek were rekindling a previous relationship and went shopping in Minneapolis together last Saturday before returning to Schnagl's home. The two had "drinks and sex" and went to sleep around 2:30 a.m. Sunday.
The next day, police arrived to perform a welfare check requested by Jelinek's family members. Officers found Schnagl's Tahoe in a nearby ditch next door to his house. He told authorities he went to look for Jelinek an hour before police arrived.
The warrants detail how traces of blood were found inside the Tahoe and inside his house. Investigators say it is a small amount and not consistent with a struggle, according to FOX9.
Along with Jelinek's purse, cell phone and shoes, authorities found used cleaning supplies and more than 12 pounds of vacuum-sealed marijuana in Schnagl's BMW.
Schnagl was arrested on drug charges and has been transferred to the Anoka County Jail for a probation violation.
FOX reports Jelinek's sister gave authorities evidence of violence between the couple in the past, but investigators say there's currently no evidence of violent activity.
In a KSTP report Friday about the released search warrant documents, the station said there was mention by investigators about an unidentified source who called police on Wednesday. The source reportedly said Schnagel made a call to a mutual friend the night of Jelinek disappeared, and claimed Jelinek overdosed and he didn't know what to do.
About 300 volunteers gathered Thursday to search for Jelinek. The search resumed Friday.
See KSTP video below about the latest developments in the case.