NEW : `` She often seemed to stop time itself , '' family says in statement . Sister of President Edward Kennedy , Sen. R. Sargent Shriver dies at 88 . See images from Shriver 's life » . Kennedy was Special Olympics founder , honorary chairwoman . Husband R. Sargent Shriver , 19 children , five grandchildren with her at death .
NEW : `` She often seemed to stop time itself , '' family says in statement . Sister of President Edward Kennedy , Sen. R. Sargent Shriver dies at 88 . Kennedy was Special Olympics founder , honorary chairwoman . Husband R. Sargent Shriver , 19 children , five grandchildren with her at death .