Does anyone know which character is getting killed off in Glee in the episode funeral ?

Hi I've heard that a major character is getting killed of in glee it's either Rachel,Puck,Santana or Mr Shue. as I've done a little research this is what being said but nothing is conclusive does anyone know exactly who ,thanks if you know. I'm a huge fan of glee Hope Rachel,puck,or Mr shue isn't getting killed of their three of the best characters