Photo: KARE 11/Youtube

Four individuals were found dead inside an abandoned black SUV in Sheridan Township, Wisconsin

Four people were found dead inside an abandoned SUV in a Wisconsin cornfield on Sunday, authorities said Tuesday.

Currently, there are no suspects or known motives. “That one is a mystery,” said Dunn County Sheriff Kevin Bygd during a news conference.

In fact, Bygd said police believe “everybody’s a suspect at this point. We’re looking at everybody and every possibility.”

The sheriff’s office did not immediately respond to PEOPLE’s request for comment.

KARE 11/Youtube

Four individuals were found dead inside an abandoned black SUV in Sheridan Township, Wisconsin

Police said three of the victims —Pettus, Foremann III, and Sturm — were from St. Paul, Minn. Flug-Presleywas from Stillwater. Pettus was Sturm’s brother, according to theSt. Paul Pioneer Press. Sturm was Foremann’s girlfriend.

The four, Bygd said, had visited a St. Paul bar on Saturday night where they allegedly were seen leaving with someone not in their group.

Four individuals were found dead inside an abandoned black SUV in Sheridan Township, Wisconsin

The victims likely died less than 24 hours before being discovered, per police.

Bygd does not believe the perpetrator is from the area, adding the cornfield was “was a place these victims were randomly brought.”

“We can’t find any connection to this area other than possibly randomly driving out of the Twin Cities,” the sheriff said during the news conference.

An investigation into the incident is ongoing.

source: people.com