Iowa Supreme Court Chief Justice Mark Cady died of a heart attack Friday evening.

CBS2 News reported the judge was walking his dog in his Des Moines neighborhood when it happened. The Iowa  was 66 years old and leaves behind a legacy of service.

"The Iowa Judicial Branch is saddened to report that Iowa Supreme Court Chief Justice Mark Cady has passed away," the Iowa Judicial Branch said in a statement. "He was a wonderful individual and exceptional judge, respected and beloved by his fellow jurists. His passing is a great loss to the court and the state he so loyally served. We extend our deepest condolences to his wife Becky and his family."

Cady's career started as a law clerk in 1978. He spent years as an associate judge, district court judge and Iowa Court of Appeals Judge before being appointed to the Iowa Supreme Court in 1998.

He became Chief Justice of the Iowa Supreme Court in 2011.

Funeral arrangements are still pending.