#Kakuzu knows and he gives him powerful medicines/sedatives that put him to sleep and have him simply dream most of his murders

[ladykissingfish]

Deidara: Danna, what religion are you?

Sasori: Nothing.

Deidara: So you're an atheist?

Sasori: Not exactly. I'd like to believe in the idea of a higher power, but, I'm a creature of science. I believe in facts, statistics, and verifiable proofs. But I suppose I'm open to believing anything.

Deidara: I guess I'm like that too, hm. Not for the science stuff but about being open to things. I don't think it's good to be made to believe in one thing, you know? It's -

*Hidan comes into the room*

Hidan: Are you fuckers shopping for a new religion?? Because I've got the perfect one for you! I --

Sasori: No, Hidan.

Hidan: But ...

Deidara: Nobody wants to hear anything about your damn phony Lord Jashin, hm!

*Deidara and Sasori leave*

Hidan: *pulls up his right hand, revealing a hand-puppet with white hair and pink eyes*

Hidan: That fucker had the audacity to call you phony, Lord Jashin!

"Lord Jashin": Destroy the non-believer!

Hidan, raising his scythe with the other hand: As you command, my Lord.

Kakuzu, sneaking up behind with a syringe of Hidan's medication: