NEW : `` It was just a freakish accident , '' sister-in-law says . ( CNN ) -- NEW : John N. Anderson , 53 , falls about 350 feet off the South Rim . He was visiting with his family from Texas . New : A man is killed when he tries to jump into the canyon below.
NEW : `` It was just a freakish accident , '' sister-in-law says . NEW : John N. Anderson , 53 , falls about 350 feet off the South Rim . He was visiting with his family from Texas . New : A man is killed when he tries to jump into the canyon below.