In December 1969, a rock festival took place in Altamont, California, about 45 km (30 miles ) east of San Francisco. Initially billed as "Woodstock West", its official name was The Altamont Free Concert. About 300,000 people gathered to hear The Rolling Stones; Crosby, Stills, Nash and Young; Jefferson Airplane and other bands. The Hells Angels provided security that proved far less benevolent than the security provided at the Woodstock event: 18-year-old Meredith Hunter was stabbed and killed by one of the Hells Angels during The Rolling Stones' performance after he brandished a gun and waved it toward the stage.