Jonestown is a remote settlement in Guyana(A country on the northern coast of South America).
Jonestown was a cult that established in 1973, by the cult leader Jim Jones.
The cult was religions, mixing Christianity and Marxism, Jim showed interests in Joseph Stalin, Adolf Hitler, Vladimir Lenin, he saw them as heroes.

The story is known because of it's horrifying and eerie story, the mass suicide that led to the death of 918 people.

Warning: Graphic

The Short Version of the Story

After a few articles have been published about Jonestown and the horrors of the cult and their unbelieve stories and crimes against their own people,
The government, the police and other authorities decided to take actions and raid Jonestown.
The cult didn't want anyone to go, forced everyone to stay where they are and announced to their people to commit revolutionary suicide.

Some of the people were totally brainwashed, led to believe that that is the only option, to stand for their beliefs of that same cult leader, Jones.

Jim Jones:
"Die with a degree of dignity. Lay down your life with dignity; don't lay down with tears and agony."
"I tell you, I don't care how many screams you hear, I don't care how many anguished cries ... death is a million times preferable to 10 more days of this life. If you knew what was ahead of you – if you knew what was ahead of you, you'd be glad to be stepping over tonight".

Adults, kids and babies were told and forced to consume the poison or to be injected by a syringe.

Shockingly, parents had to watch their children die, people waited for their turn to die, the people were forced to die, surrounded by armed guards, offering members the basic dilemma of death by poison or death by a guard's hand.

Cries and screams of children and adults could be heard on the tape recording that was made.

In the end, Jones was found dead, he shot himself.
How sickening and unexplained this whole thing is, to bring your believers to such path.