I want to hear your opinion on who you think the killer/s may be in Scream 4? The following are my opinions.?

Randys sister isnt the killer. She isnt apart of the movie. I dont think Billys dad and Deweys mom are big enough chartacter to actually come back in the movie. Emma Roberts is the new sydney so no. And i dont think Gale, Dewey or Sidney are the killers. It might be Roury Culking or Knudsen or probaly any of the newbies.