I think the instrumental part was created first as a standalone track, and then I found this creepy puppet sketch from something called Peppermint Park

Jonestown Redux (Must Be Insane)

I was astounded and entranced to find the very disturbing Jonestown Death Tape, a recording made at the infamous mass suicide and murder in Guyana. I made an audio track sampling this recording using Logic, and then created a video to accompany this using footage from a Jim Jones TV documentary. Not for the faint hearted.