Music by Australian horrorcore rap artist KidCrusher is featured in the episode , including the songs " Killin ' Shit " and " A Dirty Fuckin ' Murder " . The artist said he was told the episode was based on a horrorcore festival when he allowed his music to be featured in " Steel-Eyed Death " . Upon learning the episode depicted Juggalos , he later claimed to be angry that his music was used . He said , " I am pretty pissed off to hear they based the episode on Juggalos and try to make us all look like criminals and real serial killers , and that we would kill kids . " This episode is partially inspired by the Richard Alden Samuel McCroskey III case . McCroskey , an amateur horrorcore rapper who was heavily inspired by horrorcore rap artist Mars and went by the name " Syko Sam " , was accused of murdering four people in Farmville , Virginia . The victims were a Presbyterian pastor , his estranged wife , their teenage daughter ( who had been dating McCroskey ) , and one of their daughter 's friends
Richard Alden Samuel McCroskey III case
Farmville murders
Steel-Eyed Death