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So I'm solving this crime, and as I was exploring the crime scene, I saw a key name-tagged "Wilbur".
Anyways I went to gather information from the other suspects, and I visited every one of them, asked for "LEADS". None of them told me about Wilbur, and since I don't know his second name, I can't know where does he live.
Is it an error? or does that mean that Wilbur can't be a murderer? Is there a way where I can know his second name, and where does he live?

you need to search all the suspects rooms and look for yellow notes

Thank you very much!!!!

Gotta love those yellow notes!! Look carefully--they are sometimes hard to spot!