Maryanne Flippo, Sharon Whelpley and Shari Wilkins — two of whom called a special meeting for Monday to discuss suspending or terminating Sisney — had previously been unnamed defendants.

Attorney Doug Mann, with Rosenstein, Fist and Ringold, was added as a fourth defendant in the lawsuit.

The other defendants are Mike and Narissa Rampey, owners of Air Assurance, a heating and air-conditioning company that had done business with the school district; and Douglas Hudkins, a Broken Arrow optometrist.

Sisney’s attorney, Gary Richardson of Richardson Law Firm, said he had hoped to have the issue resolved, but he felt it was necessary to name the alleged co-conspirators at this time.

“They put us in this position,” Richardson said.

His law firm is now in the discovery stage and investigating conn ections between the board members and Air Assurance.