His death was announced by officials at Sandia National Laboratories .
Whitfield died in Albuquerque , New Mexico , on November 12 , 2012 , at the age of 92 .
Whitfield 's death was announced by officials at Sandia National Laboratories .
Whitfield died in Albuquerque , New Mexico , on November 12 , 2012 , at the age of 92 .