Tyrone Tappler Productions posted Aug. 31 on Facebook looking for volunteers to pose as shooting victims.
"Club Pulse, Dancers, Victims … CAGED PEOPLE/SCREAMERS, Extras needed trying to escape a cage! … SOUNDS INTERESTING? COME OUT THIS SATURDAY!!!," the post read, according to the Windy City Times.
The Facebook page has since been deactivated.
Scenes of botched abortions and a recreation of the Charleston church shooting in 2015 were also set to be included in the haunted house.