First tape - September 19th. Interrogation tape #1

???: Now please, tell me your name

???: How rude. Shouldn't you tell your name first?

???: ...Okabe. The name's Okabe

???: Surname, huh? Oh well. My name is Aikawa.

Okabe: Well then, Mr. Aikawa. Do you know the reason why  you are here right now?

Aikawa: Suspect for the murder of Mr. Katsuragi, isn't it?

Okabe: Yes. And now, please testify

Aikawa: I have a question. Is this conversation being recorded?

Okabe: Yes. 'For evidence', as they said. However, I can stop recording, if you feel uncomfortable.

Aikawa: No, that's fine. So, about the murder. I saw a man with a knife going into Katsuragi's bedroom, then nothing more. That's all.

Okabe: I see. Thank you for your help.

The tape ends on 19:30:13, September 19th, 2001