What key details about r. william riggs can be extracted from the following bio? Bio: richard william riggs -lrb- born c. 1939 -rrb- is an american attorney and former judge in the state of oregon . he is currently a senior judge for oregon , and previously was the 94th justice of the oregon supreme court serving from 1998 to 2006 .
A:
- appointer is john kitzhaber neil goldschmidt- successor is martha lee walters rives kistler- predecessor is susan p. graber george van hoomissen john c. warden- office is 94th of the oregon court of appeals associate justice of the oregon supreme court judge- name is richard william riggs- termstart is 1998 1988- termend is 2006 1998