"I promise we wont"
Does this line after Angela gets thrown in the water by Meg and Judy (and the next scene where they get viciously killed) prove the 2 killer theory?
After all, he says "we" wont let them get away with it.
Though Ricky doesn't have the same issues Angela did, is he also a deranged psycho?
It is clear in the end who is the killer, but I dunno, Ricky doesn't walk away from this clean.......