 Bumphus qualified at 139 pounds and was a member of the 1980 U.S. Olympic boxing team that died in the crash of LOT Polish Airlines Flight 007 in Warsaw, Poland, on March 14, 1980 en route to the USA vs. Poland Box-off as part of "USA vs. the World" event.Bumphus was not with the team.Among the USA Boxing teammates who were killed in the crash were Lemuel Steeples from St. Louis, Calvin Anderson from Connecticut, Paul Palomino - the brother of Carlos Palomino, George Pimental and the Olympic coach, Sarge Johnson.