[This guy really be having a moral crisis in front of two assholes who just mcmurdered a bunch of scientists. My god.

Ichinose just keeps staring at him, baffled... before she starts laughing.]

... Ahaha, that's it? [This is not funny. Stop laughing. You both need therapy. Gently, placidly:] It's alright. This man was hurting you. Isn't it the heart's nature to want to run away from all the pain? All the suffering? It's every living being's ultimate desire. You don't have to kill yourself over something that's just in your nature.

[Can she yoink the knife while Yamato pins him down? Noooo stabby.]

Anyhow, we're the ones who killed him. Can you really wish death on someone who's already gone?