Yeah, in 1955. He even attended some Communist Party meetings.
See if you can follow, Reverend Jim Jones was a reverend. That's a preacher. He claimed to be everything from Jesus, to even God. He led a cult that revered him as such. He led that cult into death.
And the drink that they used was not Kool-Aid, it was the aforementioned Fla-Vor-Aid, grape flavored, to be exact.
This is the interwebz, you can look this up at a flick of your fingers. You don't have to wait till Monday to go to the local public library and look it up on fiche.