TEXAS COUNTY, Okla. (KFOR) — The preliminary hearings for three of the five defendants charged with murdering two Kansas moms have started. The preliminary hearings are for Tifany Adams, Tad Cullum, and Cole Twombly.  RELATED STORY: Autopsy reports reveal gruesome details in Texas County double murder; two defendants turn to state witnesses Adams, Cullum, and Cole Twombly had preliminary hearings scheduled to be held jointly at the Texas County Courthouse. Law enforcement officers brought the three suspects and a fourth suspect, Cora Twombly, to the courthouse Tuesday morning. They were each led in separately in handcuffs. According to family members in the courtroom, Adams showed up, admitted guilt and has waived her right to a preliminary hearing and speedy trial. She is due back in court April 16. The District Attorney filed a motion to have Paul Grice and Cora Twombly testify, we know that Twombly is testifying today. We learned she entered a plea agreement with the state and for her testimony they are recommending she gets a sentence of life with 30 years suspended. These preliminary hearings give prosecutors a chance to lay out evidence and for a judge to decide if there is enough evidence to go to trial. The hearings are expected to last until Thursday.