(NewsNation) — Police Tuesday towed a white trailer belonging to one of four people charged in the death and disappearance of Kansas moms Veronica Butler and Jilian Kelley.

The women, last seen March 30, were involved in a contentious custody dispute. Investigators recovered two bodies over the weekend in the area, and while they haven’t been positively identified, four are now charged in connection with Butler and Kelley’s disappearance.

Grandmother Tifany Adams, 54; her boyfriend Tad Cullum, 43; Cora Twombly, 44; and her husband Cole Twombly, 50, are each charged with kidnapping and first-degree murder.

Police on Tuesday towed a trailer from a property with ties to Cullum. Witnesses said they saw the white trailer in the area where the women were killed.

The suspects were all part of an anti-government group with religious affiliations called “God’s Misfits.” It’s unclear whether the suspects’ involvement in the group is relevant to the women’s death and disappearance.

All four suspects are expected to appear in court Wednesday.