http://teamrock.com/feature/2015-09-27/16-things-you-might-not-have-known-about-cliff-burton
Born on February 10, 1962 in California and Died on September 27, 1986 in Sweden at the age of 24. Cliff joined Metallica in '82 and is on the first three of the band's albums. Kill 'Em All, Ride the Lightning and Master of Puppets.
He was killed by thrown through the window and the bus fell on top of him, when the tour bus skidded and flipped on the grass. It was on the European part of the Damge Inc. tour of Master of Puppets.
Thanks for posting. RIP Cliff.