A witness who got rattled on the stand Thursday at a murder trial in Portland made a surprise revelation: that she, her husband and the defendant coordinated the lies they told investigators.

Tunile Jennings shook her head in frustration as prosecutors and defense attorneys questioned her honesty. She spoke in rapid bursts, often giving more information than the attorneys sought, during her second day of testimony in the trial of Anthony Pratt Jr. in the Cumberland County Courthouse.

Pratt is accused of fatally shooting his married lover, Margarita Fisenko Scott, 29, on Nov. 11, 2012, in a Portland apartment rented by Jennings and her husband, Christopher Jennings. Scott was killed with a .40-caliber handgun that police found hidden in another Portland apartment that the Jennings rented. DNA from Tunile and Christopher Jennings was found on the gun.

“We spoke to Anthony (Pratt) about everything we were going to lie about,” Tunile Jennings said, referring to statements she and her husband made to Portland detectives in multiple interviews last year.

That contradicted testimony Christopher Jennings gave Wednesday, when he said the couple had only limited contact with Pratt after Pratt left Maine to return to New York on the day police say the killing occurred. Christopher Jennings also said they had little contact with Pratt after Scott’s body was found in the back of a snow-covered Chevrolet Trailblazer in the parking lot of the Motel 6 in Portland on Jan. 17, 2013.

After Tunile Jennings said she and her husband coordinated their lies with Pratt, the prosecutor, Assistant Attorney General Donald Macomber, asked her nothing more.

She answered a few more questions from one of Pratt’s attorneys, Dylan Boyd, but was soon told by Justice Thomas Warren that she was free to leave. She walked quickly from the courtroom, shaking her head.

Neither Christopher nor Tunile Jennings has been charged in connection with Scott’s death. Tunile Jennings has since moved back to Queens, New York, with their two children. Christopher Jennings still lives in Portland with friends while he is free on bail in an unrelated felony cocaine trafficking case in Maine.

Pratt’s DNA was not found on the murder weapon and evidence collected during the autopsy showed that Christopher Jennings was the last person to have sex with Scott before she died.

Although both Tunile and Christopher Jennings were called to the stand as prosecution witnesses, Pratt’s attorneys used the opportunity during cross-examination to portray them as alternative suspects in Scott’s killing.

Tunile Jennings also admitted on the witness stand Thursday that she told Scott just hours before her death that she would kill her if Scott ever had sex with Jennings’ husband.

But Tunile Jennings became frustrated as Boyd repeatedly asked her why she didn’t tell police she had threatened Scott. She repeated that she did tell police but had not meant it to be a threat.

“I’m not going to sacrifice myself to my children by killing someone. It’s not worth it. No man is worth it,” Tunile Jennings said.

Christopher Jennings said Wednesday that he lied to police about having sex with Scott days before her death because he didn’t want his wife to find out. He also testified that he lied to police about the gun used to kill Scott because, as a felon, he didn’t want police to know he had a gun in his possession. He said the gun belonged to Pratt.

Attorneys on both sides of the case told the judge Thursday that they expect to conclude witness testimony Wednesday.

Prosecutors expected to next start calling police investigators and evidence technicians who pieced together the case against Pratt using evidence at the West Concord Street apartment where Scott was killed.

In a search of the Jennings’ former apartment at 266 W. Concord St., investigators found evidence of Scott’s blood in the living room and a pool of blood in the basement. They also found a bullet hole in the living room wall that had been plugged with a green piece of chewing gum and covered with white paper. Both the gum and paper had Pratt’s DNA on them.