Wayne Gretzky traded to LA, NHL First Rounder Duncan McPherson went missing, and Usain Bolt's Double-Double - This DiSH for Aug. 8

This Day In Sports History is part of the Sports History Network - The Headquarters For Your Favorite Sport's Yesteryear.In 1988, Wayne Gretzky was traded to Los Angeles.In 1989, former NHL first round draft pick Duncan McPherson went missing in Austria and would not be found again until in 2003.In 2012, Usain Bolt won the 200m for the second straight Olympics, becoming the first Olympian to win the 100m and 200m in back-to-back Olympics.In 1976, Cal Hubbard was inducted into the Professional Baseball Hall of Fame. He'd been inducted into the Pro Football Hall of Fame in 1969. He is the only person to be inducted into both of those HOFs.