Drew Peterson’s Doomed Wife Knew He’d Killed Before

Stacy Peterson said she knew her husband Drew had killed his ex-wife Kathleen Savio — after catching him cleaning up after the brutal act! The inside story follows — with The National ENQUIRER exposing more shocking secrets in the Investigation Discovery Channel's "Drew Peterson: An American Murder Mystery," premiering Sunday, Aug. 27 at 9 p.m. EST.

The ENQUIRER first reported how Neil Schori, a former pastor at the Westbrook Christian Church in Illinois, had told police that Stacy implicated Drew in the death of Kathleen in an emotional meeting. Schori said Stacy told him that Drew constantly accused her of infidelity, while also stalking her and blowing off her desires to divorce him.

"Stacy was terrified she would end up like his ex-wife Kathleen," said a law-enforcement insider. "She told Schori she knew Drew had killed Kathleen and made it look like an accident." Kathleen's body had found just after 11 p. m. on March 1, 2004. Her death was declared an accidental drowning, but authorities exhumed Kathleen's body after Stacy vanished — and Drew was convicted of his ex-wife's murder after a trial in 2012.

According to the source, Stacy knew Drew was at Kathleen's house several blocks away on the night of the murder. She told her preacher that in the early morning hours of March 1, 2004, she'd awakened and Drew was gone. "She dialed his cell phone again and again, but Drew never picked up." In the chilling confession to her preacher, Stacy also reportedly revealed that she then saw Drew washing Kathleen's clothes less than 24 hours before her naked body was found in the dry bathtub. The source said Drew then told Stacy she was going to be his alibi!

Pastor Schori said Stacy never went to the police out of fear, the source added. Tragically, Stacy's body has never been found, and Peterson still insists she ran off with another man.  Learn more of Drew Peterson's disturbing secrets as The National ENQUIRER partners with the Investigation Discovery Channel for "Drew Peterson: An American Murder Mystery," premiering Sunday, Aug. 27 at 9 p.m. EST.