Which playing card contributed to the death of Metallica's bass player Cliff Burton?

Clifford Lee Burton (February 10, 1962 – September 27, 1986) was an American musician and songwriter, best known as the bass guitarist for the American band Metallica from December 1982 until his death in September 1986.

Burton joined Metallica in 1982 and performed on the band's first three studio albums: "Kill 'Em All", "Ride the Lightning" and "Master of Puppets". He also received a posthumous writing credit for the song "To Live Is to Die" from the band's fourth studio album, "...And Justice for All".

During the European leg of the Damage Inc. tour in support of "Master of Puppets", the band complained that the sleeping cubicles on their tour bus were unsatisfactory and uncomfortable. To decide who received pick of the bunks, Kirk Hammett and Burton drew cards. On the evening of September 26, 1986, Burton won the game with an ace of spades, thereby getting the first choice of bunk. Burton turned to Hammett and said "I want your bunk", Hammett then responded "Fine, take my bunk, I'll sleep up front, it's probably better up there anyway." Burton was sleeping shortly before 7:00 a.m. on September 27 when, according to the driver, the bus skidded off the road (the E4, 12 miles (19 km) north of Ljungby), and flipped onto the grass in Kronoberg County. Burton was thrown through the window of the bus, which fell on top of him, resulting in his death.