Gov. John Carney Tuesday named two former Delaware judges to head an independent investigation of a takeover at James T. Vaughn Correctional Center earlier this month that left a corrections officer dead.

Former Delaware Supreme Court Justice Henry duPont Ridgely and William L. Chapman Jr., a former Family Court judge, will be tasked with finding the “causes” of the incident and recommending changes to security protocols at Delaware’s prisons, the governor said at a press conference.