Ronald D. Castille

Ronald D. Castille was born on 16 March 1944 in Miami, Florida. He received a B.S. in economics from Auburn University in 1966 and was commissioned an officer in the United States Marine Corps. He served as a platoon commander with the 2nd Battalion, 7th Marines in Vietnam.

On 16 March 1967, his 23rd birthday, his company was attacked near Duc Pho in Quang Ngai province. Castille was seriously wounded by enemy fire and could not move. Sergeant Angel Mendez shielded him, carried him more than seventy five metres to friendly lines, and continued to protect him until Mendez was mortally wounded. Mendez was posthumously awarded the Navy Cross. Castille was medically retired in 1968. He received the Bronze Star with Combat Valor Device, Purple Hearts, the Combat Action Ribbon and other decorations. He used crutches for the rest of his life and often said he lived in honour of Mendez and those who did not return.

After law school at the University of Virginia (J.D. 1971), Castille moved to Philadelphia and was hired as an assistant district attorney by Arlen Specter. He served from 1971 to 1985, becoming a deputy district attorney and chief of the Career Criminal Unit. Elected district attorney in 1985, he served from January 1986 until March 1991, overseeing more than two hundred attorneys and tens of thousands of criminal cases a year, with a focus on violent crime, organised crime, drugs and public corruption. He helped establish the Philadelphia Vietnam Veterans Memorial.

In 1991 he lost a close Republican mayoral primary to Frank Rizzo. He then practised civil litigation at Reed Smith Shaw and McClay before winning election to the Pennsylvania Supreme Court in 1993. He took office on 3 January 1994 and was sworn in as chief justice on 14 January 2008, succeeding Ralph J. Cappy. He authored more than four hundred majority opinions and guided court administration through financial difficulty, civil backlog reduction, juvenile justice reform and the 2013 Elder Law Task Force. In 2012 he cast the deciding vote against a redistricting map that split too many municipalities and in 2013 wrote the opinion upholding revised maps. He reached mandatory retirement at age 70 and left the court on 31 December 2014; Thomas G. Saylor succeeded him as chief justice. In 2016 the U.S. Supreme Court held in Williams v. Pennsylvania that his failure to recuse from a capital appeal involving a defendant whose death sentence he had authorised as district attorney created an unconstitutional risk of bias.

Castille was married to Susan Kilgus Castille. Despite losing his right leg in Vietnam he remained an avid golfer, downhill skier and boater. He was a Republican and a member of the American Law Institute from 2014.

Ronald D. Castille died on 4 November 2026 at the age of 82. The Supreme Court of Pennsylvania announced his death on 5 November 2026. Chief Justice Debra Todd said his life was defined by an extraordinary commitment to service, duty and the pursuit of justice, and she extended condolences to Susan Kilgus Castille and the family. No cause of death was stated in the court's announcement, and funeral arrangements were not included.

Castille is remembered as a Vietnam combat veteran who rebuilt a public career after a devastating battlefield injury, as Philadelphia's district attorney in the late 1980s, and as Pennsylvania's chief justice from 2008 to 2014. Colleagues highlighted his administrative leadership of the state courts and his long record of opinions. His role in the Williams capital case also became a landmark of United States Supreme Court doctrine on judicial recusal.