In the sequel (simply titled Scream), Amber is eventually revealed to be not just one of the two Ghostface Killers, but the one who killed Dewey, David Arquette’s character from the original Scream.

But because it seems so predictable for Sidney's boyfriend, Billy Loomis (Skeet Ulrich), to be the killer, he gets a pass for quite some time in "Scream." But when that final act comes around ...