(WHAS11) - The Heath High School shooter is asking Kentucky's supreme court for a second chance.
Michael Carneal, now 25, claims he was too mentally ill to plead guilty in 1998 to going into Heath High School in west Paducah and shooting eight students who were gathered for an informal prayer service.
Three of his classmates were killed and five others were wounded.
He's serving a sentence of life without parole for at least 25 years for the 1997 shooting that happened when he was 14.
The Kentucky Supreme Court is scheduled to hear arguments in the case September 11th at the University of Louisville Louis D. Brandeis School of Law.