By HANNAH GRABENSTEIN Associated PressLITTLE ROCK, Ark. (AP) — A kayaker bypassed a part of an Arkansas scenic river known as Dead Man's Curve during a weekend trip, but a rare sinkhole created a whirlpool along his alternate channel and dragged him to his death. Donald Wright, 64, from Searcy, Arkansas, died Saturday at Saddler Falls along the Spring River, said Keith Stephens, a spokesman for the Arkansas Game and Fish Commission.