Ridiculous fear mongering over what would happen when the LHC was switched on has led to horrible consequences. The popular media is to blame for this girl's suicide for the way they reported the story, hyping the practically impossible. Especially when the LHC can't do the destructive things that morons have been claiming it can.

Ref:
No, the LHC won’t destroy the Earth (Phil Plait)
Doomsday Fears Claim a Life (Blake Stacey)