(St. Paul, MN)  —  Prosecutors in Minnesota are adding charges in the case that saw four people left dead in Dunn County. They filed more charges yesterday against Darren Osborne. Prosecutors say he aided his son, 38-year-old Antoine Suggs, in covering up the murder of the four people found in that SUV about two weeks ago in a cornfield near Sheridan. Osborne is also facing charges here in Wisconsin for leaving the bodies. Both men are in custody in Minnesota.