Cold CaseJonestown

Jonestown Massacre

#cult#mass-death#cold-case#congressman#guyana
Apr 9, 2026

On November 18, 1978, more than 900 members of the Peoples Temple cult died at their jungle commune in Guyana after cult leader Jim Jones ordered a mass poisoning, in the largest single loss of American civilian life before September 11, 2001. U.S. Congressman Leo Ryan and four others were also murdered at a nearby airstrip.

Case overview

LocationJonestown
IncidentNovember 18, 1978
StatusCold Case
Case typecult
VictimLeo Ryan

On [November 18, 1978](https://www.history.com/topics/crime/jonestown), more than 900 Americans died in the largest mass murder-suicide in modern history at Jonestown, a remote agricultural settlement in the jungle of northwestern Guyana, South America. The deaths were orchestrated by Jim Jones, the leader of the Peoples Temple, a cult that had relocated from California to Guyana in 1977. The Jonestown massacre also included the murder of U.S. Congressman Leo Ryan and four others at a nearby airstrip.

James Warren Jones was born on May 13, 1931, in Crete, Indiana. He founded the Peoples Temple in Indianapolis in 1955, initially presenting it as an integrated Christian church focused on racial equality and social justice — causes that attracted members from diverse backgrounds. Jones relocated the church to Ukiah, California, in 1965, and later established congregations in San Francisco and Los Angeles. At its peak, the Peoples Temple had thousands of members and significant political influence in San Francisco, where Jones served as chairman of the San Francisco Housing Authority Commission.

Behind the progressive public image, Jones exercised authoritarian control over members through a combination of charisma, psychological manipulation, physical abuse, and financial exploitation. Defectors described staged faith healings, public humiliation rituals, forced confessions, and the requirement that members surrender their income and assets to the church. Jones became increasingly paranoid and began conducting "White Night" rehearsals — drills in which members practiced drinking a beverage they were told was poisoned, as a test of loyalty.

In 1977, amid growing scrutiny from investigative journalists and former members, Jones abruptly relocated approximately 1,000 followers to Jonestown, an agricultural project the Peoples Temple had established in Guyana's remote northwest. The settlement was presented as a socialist paradise, but conditions were harsh — members worked long hours, received inadequate food and medical care, and were subjected to constant surveillance and punishment. Armed guards patrolled the perimeter, and members' passports were confiscated.

Concerned relatives of Jonestown residents formed a group called the Concerned Relatives and lobbied U.S. government officials to investigate conditions at the settlement. [On November 17, 1978, U.S. Congressman Leo Ryan of California led a delegation](https://www.washingtonpost.com/history/2018/11/14/congressman-who-died-investigating-jonestown/) that included congressional staff, journalists, and Concerned Relatives members to Jonestown to investigate the allegations.

On November 18, as Ryan's delegation attempted to depart from the Port Kaituma airstrip approximately six miles from Jonestown, Temple gunmen opened fire on the group. Congressman Ryan, NBC News correspondent Don Harris, NBC cameraman Bob Brown, San Francisco Examiner photographer Greg Robinson, and Temple defector Patricia Parks were killed. Several others, including future Congressman Jackie Speier (then a congressional aide), were wounded.

Simultaneously, Jones ordered the mass murder-suicide at Jonestown. [Members were directed to drink a grape-flavored drink mixed with cyanide and sedatives](https://www.npr.org/2018/11/18/668938196/40-years-later-jonestown-survivors-speak) — a method that had been rehearsed during the White Night drills. Those who resisted were forcibly injected or shot. Jones himself died of a gunshot wound to the head. A total of 909 people died at Jonestown, including 304 children. The event gave rise to the phrase "drinking the Kool-Aid," though the beverage used was actually Flavor Aid.

Jim Jones died at Jonestown and was never tried for any crimes. [Larry Layton](https://www.washingtonpost.com/nation/2020/07/11/larry-layton-jonestown-released/), a Temple member who had opened fire inside a plane at the Port Kaituma airstrip, wounding two people, was the only Jonestown participant to be tried in the United States. He was convicted of conspiracy to murder Congressman Ryan and aiding and abetting the attempted murder of U.S. diplomat Richard Dwyer. Layton was sentenced to life in prison in 1987 but was paroled in 2002 after serving eighteen years.

Several other Temple members involved in the airstrip attack were killed at Jonestown or were tried in Guyana. Charles Beikman pleaded guilty in Guyana to attempted murder in connection with the deaths of Sharon Amos and her three children, who were killed at the Peoples Temple's Georgetown headquarters on Jones's orders during the massacre.

The Jonestown massacre prompted [congressional hearings on cult activities](https://www.pbs.org/wgbh/americanexperience/features/jonestown-life-and-death-peoples-temple/) and led to increased scrutiny of religious organizations in the United States. The case is studied in contexts including the psychology of cults, the dangers of authoritarian leadership, mass violence, and the vulnerability of individuals to coercive persuasion and social influence.

1978

November 18, 1978

Congressman Ryan and delegation murdered at airstrip

As Ryan's group attempted to depart with defecting temple members, Peoples Temple gunmen attacked at the Port Kaituma airstrip, killing Congressman Ryan, three journalists, and one defector.

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November 18, 1978

Mass deaths at Jonestown — 918 killed

Hours after the airstrip attack, Jim Jones ordered his followers to drink cyanide-laced punch. A total of 918 people died, including 304 children. Jones died of a gunshot wound to the head.

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November 14, 1978

Congressman Leo Ryan travels to Jonestown

U.S. Representative Leo Ryan of California flew to Guyana to investigate reports of abuse and human rights violations at Jonestown, accompanied by journalists and concerned family members.

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1977

July 1, 1977

Jones moves followers to Jonestown, Guyana

Following negative media investigations by New West magazine, Jim Jones relocated with hundreds of followers to a jungle settlement in Guyana, which he called Jonestown, promising a utopian community.

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1955

January 1, 1955

Peoples Temple founded by Jim Jones

Jim Jones founded the Peoples Temple in Indianapolis, Indiana. Over the following decades he relocated the congregation to California, building a large, racially integrated congregation.

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Victim
Suspect / Convicted
Unknown Subject
Witness
Investigator
Attorney
Jim Jones

Jim Jones

Convicted

Jim Jones was the founder and leader of the Peoples Temple who orchestrated the mass poisoning at Jonestown on November 18, 1978. He died at Jonestown from a gunshot wound to the head, likely self-inflicted, on the same day as the massacre.

Leo Ryan

Leo Ryan

Victim

U.S. Congressman Leo Ryan of California was murdered by Peoples Temple gunmen at the Port Kaituma airstrip in Guyana on November 18, 1978, while investigating conditions at Jonestown. He was the first sitting U.S. congressman to be assassinated in the line of duty.

Larry Layton

Convicted

Larry Layton was a Peoples Temple member who participated in the attack on Congressman Leo Ryan's delegation at the Port Kaituma airstrip. He was the only person convicted in connection with the Jonestown events, pleading guilty to conspiracy to murder a congressman.