In November 1978, now U.S. Representative Jackie Speier was working as an aide to Congressman Leo Ryan when she and several others accompanied him on a trip to the Peoples Temple Agriculture Project, a remote settlement better known as Jonestown, located in rural Guyana. The Ryan delegation traveled there to investigate reports of widespread physical and sexual abuse amongst the Peoples Temple religious sect led by the Reverend Jim Jones.

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Representative Ryan and three reporters were shot and killed at an airstrip by members of Jones’s cult as Ryan’s people attempted to help those who had decided to leave the Peoples Temple community escape. A Peoples Temple defector was also killed, but Speier - who was shot five times - survived.

WATCH Still Carry Two Bullets,’ Says Jonestown Survivor 40 Years After She Was Shot

After the shootings, over 900 of Jones’s followers died at Jonestown. Some were shot, others were injected with poison, and reportedly, the vast majority were found to have ingested a fruit-flavored punch laced with cyanide.

In the video above, Congresswoman Speier says she wishes the U.S. State Department had done a better job of investigating and protecting American citizens at Jonestown.

“They failed in their duty to warn, their duty to protect and the duty to investigate,” she claims in the video above.

On Wednesday’s Dr. Phil.  find out what a former member of the Peoples Temple says happened to him during his attempt to escape Jonestown. Check here to find out where you can watch

Congresswoman Jackie Speier is the author of “Undaunted: Surviving Jonestown, Summoning Courage, and Fighting Back.”

This program contains disturbing images. Viewer discretion is advised.

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‘I Felt Trapped In Jonestown,’ Says Survivor Of 1978 Massacre