David Prosser, who rose to become speaker of the Wisconsin Assembly before an 18-year tenure on the state Supreme Court that was marked by a heated altercation with another justice, has died.

Former Wisconsin Supreme Court Justice David Prosser died Sunday at 81 years old. Prosser served 18 years on the state's highest court and was previously assembly speaker before that. Gov. Tommy Thompson appointed Prosser to the Supreme Court in 1998.

APPLETON, Wis–Former Wisconsin Supreme Court Justice David Prosser has died. Prosser passed away over the weekend at the age of 81. Before serving on the high court, the Appleton native was a district attorney and judge in Outagamie County. He then served 18-years in the state Assembly, including one term as Speaker.