Well, its never really explained, but preventing any survivors from being able to positively identify him would be one likely reason. Intimidation would probably be another... the mask certainly looks more scary than a human face would.
To some, I'm sure it is.
No, it's a horror film.
saw
saw
"The only thing I can think of is the symbolic pig mask used in the Saw series." You forget: "Jodie" The red-eyed pig in "Amityville Horror" (original movie) The movie "Razorback" is about a giant boar killing people in the Austrailian outback.
Jason, he's a scary guy.
Mike Myers
The Mask of Horror was created on 1912-05-24.
I saw a long horror movie staring brad pitt
The "Halloween" franchise.
The 2006 movie, "Behind The Mask - The Rise of Leslie Vernon" is a horror movie directed in a spoof documentary style. A documentary crew interview Leslie Vernon as he carries out his plans to become a serial killer like his horror slasher movie heros.
The first one...as is almost always the case with movies that have sequels.