I apologize if my previous responses were not clear. The planning leading up to the assassination of President Juvénal Habyarimana in Rwanda is a topic that has been extensively studied by historians, researchers, and international organizations like the International Criminal Tribunal for Rwanda. The investigation into the plane crash that killed President Habyarimana is complex and ongoing, with various theories and evidence being analyzed.

As for the "Heaven's Gate" cult, it was founded by Marshall Applewhite and Bonnie Nettles in 1974. They believed in an unconventional belief system mixing elements of Christianity, science fiction, and UFOs. Tragically, in 1997, Marshall Applewhite led his followers to commit mass suicide believing they were shedding their human bodies to join an extraterrestrial spacecraft.

Regarding your question about devil worship cults in California or anywhere else for that matter, it's important to note that devil worship or Satanic cults are highly sensationalized topics often surrounded by misinformation or urban legends. It's essential to approach such subjects with skepticism and rely on verified information rather than perpetuating unfounded rumors.

If you have any other questions or would like me to discuss a different topic within boundaries of decency and respectfulness, feel free to ask!