WINNEBAGO COUNTY, Ill. (WTVO) — Carl DeFay, 33, killed Samantha Swan after a threesome and then burned her body and then he and his wife hid her body in a cornfield, his wife testified at trial on Tuesday.

Opening arguments happened for 33-year-old DeFay, of Durand, who is accused of killing Swan, 38, and hiding her body in 2017.

Swan allegedly had a history of drug abuse and was not initially reported missing.

Police found her remains on a farm on Wheeler Road near Durand in August of that year. Swan may have been murdered as early as February, police said, with prosecutors saying she died of strangulation.

DeFay is accused of torturing Swan to death and setting her body on fire. DeFay’s wife, Cortney, testified Tuesday that she and DeFay were having sex with Swan when he started choking and punching her.

Samantha Swan

She told the jury that she left the house and saw DeFay trying to burn Swan’s body in the driveway when she came back.

She and Defay are accused of taking Swan’s body to a cornfield.

Prosecutors asked why it took her so long to come forward.

“Each time you spoke to the police, did you at any point, between February when Samantha was killed and August 16th, 2017, did you ever tell them about the defendant killing Samantha,” prosecutors asked.

“No,” Cortney said.

“And why’s that,” prosecutors said.

“I was afraid,” Cortney answered. “Carl told me often that he would hurt me and my family, my daughter, I believed him.”

Arguments are supposed to continue this week.

Defay is already in prison on an unrelated domestic violence charge.

If you are a survivor of domestic or sexual violence, visit our Stateline Strong page for resources.