Former GM CEO Rick Wagoner will be deposed by lawyers currently suing General Motors for its alleged cover-up of the now infamous GM ignition switch recall, which has now been attributed to over 100 deaths and many more injuries. A deposition is a sworn, out-of-court testimony that is reduced to writing for use in court or for discovery.

Wagoner, who led GM from 2001 until his dismissal by the Obama administration in 2009, will be questioned by Texas attorney Robert Hilliard about his knowledge of the events leading to the recall of over 2.6 million vehicles. These cars allegedly featured defective ignition switches linked to as many as 109 deaths and over 200 injuries.

The ex-CEO, who oversaw losses of more than $82 billion during his tenure as head of GM, will be deposed on Sept. 2. However, he’s not the only ex-CEO that Hilliard is hoping to question in the ignition switch class action lawsuit against the automaker.

More Former GM CEOs and Executives To Be Questioned

Hilliard is also seeking depositions from Fritz Henderson (who was CEO for just eight months, from March 31 to Dec. 1, 2009), Ed Whitacre, and Dan Akerson, predecessor to current CEO Mary Barra. All four chief executive officers held their posts during GM’s period of government ownership and Hilliard is seeking to depose “every CEO who was there during the active cover-up.”

The query will not stop with the former CEOs, according to Hilliard, who plans to depose more than 55 current and former GM employees.

Anton Valukas, who oversaw GM’s internal investigation and produced the well-known Valukas Report, will be questioned Sept. 24. The report, which came after he and his team interviewed hundreds of employees and reviewed more than 40 million documents, put the company in an unflattering light where communication was poor, bad news was buried, and cost trumped other factors in vehicle development.

GM officials have consistently denied there was a GM ignition switch cover up and current CEO Mary Barra has repeatedly stated that changing the culture documented in Valukas Report was a top priority for her as CEO. Mary Barra will be deposed on Oct. 8.

GM Ignition Switch Problems

The company established a $550 million victims compensation fund to help the people and the families impacted by the defective ignition switch vehicles. At issue is the design of the GM ignition switch, which allowed the key to move from the “on” position to the “accessory” position, cutting the power to the vehicle, making it difficult to control and shutting down the airbags in some cases.

In essence, the GM class action lawsuits contend that GM actively engaged in a cover-up of the problem that led to the recall of 2.6 million small cars in 2014, the deaths of over 100 people, and injuries to hundreds more.