For the last month, attorneys, experts and a U.S. District Court judge have been in a Boise courtroom trying to determine the past mental state of a serial killer.
Five years ago, Joseph Duncan III was sentenced to death in federal court for killing a 9-year-old boy in 2005. He soon waived his right to appeal the sentence, fast-tracking his own execution.
Duncan later changed his mind, and his attorneys Thursday wrapped up their effort to convince a judge their client wasn't mentally fit to make such a decision.
David Leroy is a former Idaho Attorney General and has been following this case. He says these latest proceedings are rare.
Click the play to listen to the interview.