Eight people believed to be working together to supply a suspected methamphetamine producer in an adjoining county are facing felony charges in Warren County Circuit Court. The suspects in the case are from Warrenton, Wright City, Winfield and Jonesburg, according to to court documents. According to court records, felony charges for attempting to manufacture a controlled substance were filed by the Warren County Prosecuting Attorney's Office against: Brandon L. Boschert, 19, Brenda J. Erwin, 30, Gwenna J. Veal, 40, and Phyllis R. Wyhs, 48, all of Warrenton; Tara A. Decornellas, 39, and Shanae N. Parks, 21, both of Wright City; and Melanie M. Erwin, 18, Winfield, and Samantha L. Hollaway, 20, Jonesburg. Bond in all but one of the cases was set at $25,000, according to court records. Wyhs faces an additional charge for alleged possession of a controlled substance. Her bond was set at $35,000, court records show. Kevin Harrison, Warren County sheriff, said the charges resulted from an ongoing investigation by Lt. Scott Schoenfeld into individuals suspected of manufacturing, possessing, using and selling methamphetamine throughout the Warren County. Schoenfeld's investigation focused on identifying and intercepting suspects gathering, purchasing and sometimes stealing equipment and chemicals needed to produce the drug, according to Harrison. During the course of the investigation, it was determined that on April 9, all eight suspects allegedly were gathering medications containing pseudoephedrine for the purpose of supplying another person with the knowledge that methamphetamine would be produced. Sheriff's Department Patch