Hoodies

The Hoodies are the antagonists of the 2010 British horror known as F - they are based on real-life "hoodie gangs" found in British crime-culture and share elements with the Neo-Nazis from Class of 1989 (though they lack a leader).

The Hoodies lay seige to a school by night and go on a murderous rampage, capturing a security guard and locking him in a dumpster before setting him on fire - they proceed to break into the school and murder the librarian before terrorize the protagonist.

The Hoodies, like many horror antagonists, are driven purely by bloodlust and have no redeeming qualities whatsoever, despite their young age, in fact they seem to take sadistic joy in senseless murder and target each victim at random (this references a real-life phenomena known as "happy slapping" - in which youths attack people at random, often for thrills).