A witness in actress Nicollette Sheridan’s wrongful termination lawsuit against ABC and the producers of “Desperate Housewives” offered testimony today that suggests a possible cover-up, CNN reports.

Michael Reinhart, the show’s set construction coordinator, talked about an email he received in fall 2010, soon after Sheridan filed her suit. He said he called Sheridan’s attorney over the past weekend because his recollections “started gnawing at me" and he "began to lose sleep,” the story reports.

Reinhart testified: "It was my understanding that they were going to delete e-mails from the hard drives."

He said he read the email and deleted it immediately, thinking it was not meant for him, the story reports.

"I honestly tried to put it out of my mind," he testified. But as he realized the trial was winding down, he decided to speak out.

Closing arguments were scheduled for today, but the addition of Reinhart as a witness “threw that schedule into chaos,” the story reports.

A key issue in the case is when the decision was made to kill off Edie Britt, Sheridan’s character on the show. Defense attorneys contend the decision was made in May 2008, four months before an incident where show creator Marc Cherry allegedly hit Sheridan. Sheridan’s team has contended that the decision was made after that incident.

In a statement provided to CNN, Cherry’s defense team said: "Today’s antics by the plaintiff, conjuring up mysterious emails, (appear) to be a last-ditch effort save to her case."