Incident Overview · Free Festival Disorder
Altamont SpeedwayFree Festival
A free Rolling Stones-led festival at Altamont Speedway on 6 December 1969 became one of rock history’s most notorious crowd safety failures. Sources consistently report Hells Angels in a security role, the fatal stabbing of Meredith Hunter during the Rolling Stones’ set, and three further accidental deaths connected to the event.
Core Facts
What Happened
Summary
Free Concert, Fatal Disorder
The reviewed sources describe a free festival led by the Rolling Stones at Altamont Speedway. The event drew a very large crowd, commonly estimated around 300,000 people, and is repeatedly described as disorderly and violent.
Hells Angels are described by multiple sources as having a security role of some kind. During the Rolling Stones’ set, 18-year-old Meredith Hunter was stabbed to death by Hells Angel Alan Passaro, who was later acquitted on self-defence grounds.
Three other deaths are reported as accidental: one drowning connected to travel to the event and two deaths in a hit-and-run. A single reliable non-fatal injury total was not verified, though multiple sources describe assaults and injuries.
Review disputed details →Quick View
Incident Highlights
Chronology
Known Sequence
Festival staged at Altamont Speedway
The free concert took place on 6 December 1969 at Altamont Speedway in California. Sources vary between Tracy, Livermore, near San Francisco, and between Tracy and Livermore as the nearest-location wording.
Large crowd gathers
Retrospective accounts commonly state that around 300,000 people gathered at the speedway, creating a major crowd management challenge.
Hells Angels take security role
Multiple sources describe Hells Angels acting in a security role. Sources differ slightly on the formality and arrangement behind that role.
Disorder and assaults reported
Sources report repeated violence, with examples including Marty Balin being knocked unconscious and Stephen Stills being stabbed in the leg with a sharpened bicycle spoke.
Meredith Hunter fatally stabbed
During the Rolling Stones’ set, Meredith Hunter was stabbed by Alan Passaro. Accounts agree that Hunter had a gun, but differ on his exact movement and intent before the stabbing.
Aftermath and investigation
Passaro was later acquitted on self-defence grounds. A later second-stabber theory was rejected by Alameda County sheriff’s investigators.
Venue Strong, City Wording Mixed
Altamont Speedway is consistent, but sources differ on whether to describe it as near Tracy, in Livermore, near San Francisco, or between Tracy and Livermore.
Fatalities Well Supported
Four deaths are repeatedly reported: Hunter’s stabbing plus three accidental deaths elsewhere or connected to the event.
Security Role Central
The Hells Angels security role is a core fact across the source set, though wording differs on how formal that role was.
Injury Total Weak
Assaults and injuries are reported, but a stable non-fatal injury total was not verified from the reviewed sources.
Disputed Evidence
Conflicting Information
Precise location wording
All sources refer to the same venue and incident, but they differ in nearest-city wording.
Source cluster 1
The Washington Post and Library of Congress place the event at Altamont Speedway near or outside Tracy, California. Criterion uses broader “near San Francisco” wording.
Source cluster 2
Britannica places the festival at Altamont Speedway in Livermore, California. The California State Library preview describes the speedway as between Tracy and Livermore.
Editorial note: use “Altamont Speedway, between Tracy and Livermore, California” where a cautious wording is needed.
Meredith Hunter’s immediate movement or intent
Sources agree Hunter had a gun and was stabbed during the Rolling Stones’ set, but they do not provide one uncontested account of what he was doing in the final moments.
Britannica
Summarises Hunter as rushing the stage with a gun.
Washington Post
Reports Patti Bredehoft’s account that Hunter pointed the gun toward Hells Angels coming after him, while also recording Mickey Hart’s different view that Hunter was headed toward Mick Jagger.
Editorial note: avoid stating Hunter’s intent as settled fact. State only that he had a gun and was stabbed during the set unless citing a specific source’s account.
Unverified Details
A single, source-stable total for non-fatal injuries across the event.
An exact contemporaneous street address for the 1969 festival site.
The California State Library starting page was previewed, but the full page returned a 403 restriction in the research environment.
The user’s Wikipedia link was used only as a lead-finder, not as final evidence where stronger sources were available.
Evidence Base
Reference Cards
The Washington Post / Geoff Edgers and Erin Patrick O’Connor · News article
The Rolling Stones held Altamont, billed the ‘West Coast Woodstock’ 50 years ago. An extensive look back at the fatal festival.
21 November 2019
Long-form retrospective based on interviews with more than 30 participants and witnesses. Reports four deaths in total: Meredith Hunter’s stabbing, one drowning en route, and two hit-and-run deaths. Also records conflicting witness views about Hunter’s final movements.
Visit Source →HISTORY.com Editors / History · News article
Murder at the Altamont Festival brings the 1960s to a violent end
13 November 2009; updated 2 June 2025
States that a Hells Angel stabbed 18-year-old Meredith Hunter during the Rolling Stones’ set; says Hells Angels acted as informal security in exchange for beer; reports three additional accidental deaths and later acquittal of Alan Passaro.
Visit Source →San Francisco Chronicle via SFGATE / Henry K. Lee · News article
ALAMEDA COUNTY / Altamont ‘cold case’ is being closed / Theory of second stabber debunked by Sheriff’s Dept.
26 May 2005
Reports that Alameda County sheriff’s investigators closed the reopened Altamont case after rejecting the theory of a second Hells Angel in Meredith Hunter’s fatal stabbing.
Visit Source →Forbes / David Chiu · News article
Altamont At 50: The Disastrous Concert That Brought The ’60s To A Crashing Halt
3 December 2019
Retrospective article stating that around 300,000 people gathered at Altamont Speedway in Tracy, California, and framing the event as a disastrous closing point for the decade’s counterculture image.
Visit Source →The New Yorker / Sasha Frere-Jones · News article
The Chaos of Altamont and the Murder of Meredith Hunter
28 March 2019
Retrospective focused on Meredith Hunter and the broader violence at Altamont. The accessible preview states that dozens of people were beaten and Hunter was killed.
Visit Source →The Criterion Collection / Amy Taubin · Magazine article
Gimme Shelter: Rock-and-Roll Zapruder
1 December 2009
Essay on Gimme Shelter. Describes the free concert at Altamont Speedway near San Francisco, estimates attendance around 300,000, reports four deaths, and says Hunter was stabbed by a Hells Angel after pulling out a gun.
Visit Source →Rolling Stone staff / Rolling Stone · Magazine article
The Rolling Stones Disaster at Altamont: Let It Bleed
21 January 1970
Contemporary magazine investigation into the event and aftermath. The direct page was restricted in the research environment, but available previews confirm casualty and coroner-related reporting for the incident.
Visit Source →John Burks / Rolling Stone · Magazine article
In the Aftermath of Altamont
7 February 1970
Follow-up reporting on the consequences of the killing of Meredith Hunter at Altamont Raceway. Direct access was restricted in the research environment.
Visit Source →Rolling Stone staff / Rolling Stone · Magazine article
The Rolling Stones at Altamont: What Went Wrong?
30 April 1970
Search-result preview states that a 21-year-old Hells Angel was indicted for Meredith Hunter’s murder after the Altamont concert. Direct access was paywalled or restricted in the research environment.
Visit Source →Library of Congress / Mike Mashon, posted by Neely Tucker · Website article
The Rolling Stones, Hell’s Angels and Altamont: A New View
4 January 2022
Library of Congress article on newly surfaced home-movie footage. States the footage is from Altamont Speedway on 6 December 1969 and describes the Hells Angels security role and fatal stabbing during a gun confrontation.
Visit Source →California State Library / Greg Lucas · Website article
The 60s End In Violence
Date not visible in accessible preview
Supplied starting source. Preview states that the event drew 300,000 people to Altamont Speedway between Tracy and Livermore on 6 December. The full page returned a 403 restriction during research.
Visit Source →Encyclopaedia Britannica / Ed Ward · Website article
The Altamont festival
Article date not shown in opened excerpt
States that the one-day festival was held at Altamont Speedway in Livermore, California, on 6 December 1969, that the Hells Angels were used as security, and that the disorder climaxed with Hunter’s fatal stabbing.
Visit Source →Encyclopaedia Britannica Editors · Website article
What was the Hells Angels’ role at the Altamont music festival in 1969?
Date not shown in opened excerpt
Britannica summary stating that the Hells Angels were contracted by the Rolling Stones’ road manager to provide security and that one member killed Meredith Hunter during the performance.
Visit Source →Encyclopaedia Britannica Editors · Website article
Hells Angels
Article revised date not fully shown
Background source confirming Altamont as a free Rolling Stones concert at a motor speedway east of Oakland, that a Hells Angel was charged in Hunter’s stabbing death, and that he was later acquitted.
Visit Source →University of Lethbridge / Aaron Taylor · Academic paper
Angels, Stones, Hunters: Murder, celebrity and direct cinema
Publication year not shown in opened excerpt
Academic paper centred on Gimme Shelter and the filmed killing of Meredith Hunter. Explicitly identifies Hunter as the young concertgoer killed by a Hells Angel at the Altamont Speedway Free Festival.
Visit Source →R. Baker-White / JSTOR · Academic paper
Rethinking the Altamont Concert as Participatory Theatre
1992
Academic article about the Altamont concert as performance and social event. Search preview identifies it as directly about the free concert and the moment around Hunter’s killing; full text was not opened in this pass.
Visit Source →Source Access
