This is probably where most people saw Timothy Olyphant for the first time. It'd have to be. Otherwise you'd know as soon as you saw him who the film's killer was.
Typical of the series, there were actually two killers in Scream 2: the good one and Laurie Metcalf from Rosanne. If they'd just left the killing to Olyphant, people might have a higher opinion of this entry in general. Then again, there's not enough Olyphant in the world to wash the Jerry O'Connell lunchroom singing scene from our minds.