Do too many people know Clark's secret at this point?

[Kalerado]

I knew it!!! I knew they would have to kill off someone who knew Clark's secret. And it IS either Chloe or Lana. But we don't know if Chloe is really dead yet. And we don't even know that Lana is really dead for that matter. She just might end up in Smallville Medical Center with the police saying "Oh, we THOUGHT she was dead, so THAT'S why we arrested Lex..."