And I drifted awake today with a wild idea in my head. I'm calling it here, just so if it's true, I can say "Ha! I called it!"
Lilly said she found out a secret. What if it was the secret of Veronica's parentage, which Veronica demonstrably did not yet know? And Lianne attacked her upon returning from the hotel to try to get her to shut up, accidentally killing her?
What if Jake Kane covered up the killing because he wanted to protect the (other) woman he loved?
And that'd be a good enough reason for Lianne to run away and turn to booze. Yes?
So I'm calling it. Lianne Mars.
What's your theory?