after a possible stroke at a hospital in White Plains, New York, said Cheryl Leanza, policy adviser to the UCC. In a 1966 U.S. Court of Appeals for the D.C. Circuit decision against the FCC, UCC OC under Parker established the right of anyone to participate in proceedings before the agency, the group said. He directed UCC OC until 1983. Parker is survived by a son, a daughter, grandchildren and great-grandchildren. Funeral details will be forthcoming, and donations can be made in his honor to UCC. Statements honoring Parker flowed in the hours after UCC OC announced his death Thursday, including from FCC Chairman Tom Wheeler and from Commissioner Mignon Clyburn. Parker was "the man responsible for the public having the ability to challenge FCC actions," noted Wheeler's statement. "Perhaps no single person has had a greater impact on this country's communications landscape," he said. Parker "was special hero of mine," said ex-Commissioner Michael Copps, now Common Cause special adviser.