The last time Subaru killed someone he got so upset I found him lying facedown in the snow. All his smiles were forced. That's evidence I can bet on.

[ Sorry to reveal your practicum kills my fellow gingey but he was not...unaffected by that. Maya and Hiro were also his friends, making it even less likely he'd be upset. Look, she'd known all this last time she'd accused Subaru, and he hadn't cracked an inch. He'd been upset, honest, and genuine, exactly how she'd expect. Either he's the best liar she's ever met, or he's truely innocent. She didn't go out of her way to accuse Subaru and Amami last time so they could waste time here again! ]

I didn't browbeat him anyway, we talked as friends. He's your friend too, Sou. We've already suspected him, and we found nothing, so we should move on.