(So this takes place in trial 4 when sakura died so yeah, and aoi is making up lies saying that she's the killer when the killer is sakura, (it was a suicide), btw they're talking about the bottle of poison that killed sakura right now)

makoto: "there's no other way to explain the presence of that bottle."

kyoko: "and then, once that room was opened, the bottle somehow got moved back to the shelf in the chem lab, meanwhile, the protein can we found at the crime scene was planted there, that had to be after the locked room was opened, in other words, after sakura died."

byakuya (getting a little flustered but tries to hide it, which kinda failed obviously): "wait, hold on... you're moving too fast! I-I'll grant you, the bottle of poison may well have been in the rec room when it was locked.. but how can you say the protein can was put there after the room was unlocked!? We already know she was given the protein can with the poison inside, right? If that can wasn't there when she died, how did she get poisoned!?"

kyoko: "you're right, we do need to explain that. But before we do, there's something I like to confirm with everyone here."

yasuhiro: "huh?"

kyoko: "it has to do with the protein can. After sakura's body was discovered, did anyone move it or trip over it or anything like that?"

byakuya: "w-what are you talking about? Is this something kind of loaded question?"

kyoko: "not at all, just answer to the best of your ability."

byakuya: "w-well... no. Not that I remember.."

makoto: "yeah, me neither.."

yasuhiro: "not me."

Genocide jill: "same here!"

aoi: "y-yeah. Me either.."

kyoko: "okay then, that settles it. That proves that the protein can found its way to the murder scene after the room was opened."

byakuya (still flustered, and... oh god he's about to get a orgasm): "oh, come on! How can you say that!? How can you know what I don't know!?"