[zzzeek]

that is a totally different kind of event, it was not a spontaneous event among people who a day earlier didn't know each other and without any apparent cause. The Jonestown massacre was an intentional, orchestrated event among leaders of a cult and its victims were people who had gone through a substantial cult mind control process for months or years beforehand. There were also people who were murdered in connection with the same event including a US congressman.

in short, the Jonestown massacre was an organized mass murder that had nothing to do with mass psychogenic illness, as the mechanisms of cult mind control have been studied and documented for decades and are well understood.