The voyager had first made a reenactment of Jughead being killed by girlfriend Betty Cooper (Lili Reinhart) with a rock in the woods.
Next, a video was sent to Cheryl Blossom (Madelaine Petsch) with someone pretending to be her father Clifford Blossom (Barclay Hope) murdering her twin brother Jason Blossom (Trevor Stines).
What seemed to be most the disturbing though was the tape featured in episode 19 which showed a man, supposed to be principal Mr Honey (xx), tied up to a chair with fake versions of the Riverdale gang and their friends attacking him.
No one knows though if this was just another stunt or if someone was actually murdered during the filming.
source: express.co.uk