Clark: Lex! Lex. You all right?
Lex: Clark, what are you doing here?

Clark: Your office (shouldn't it be From you office?) told me you were here. I thought I heard someone else.

Lex: No, I'm all by myself.
Clark: Hey, I looked up Max Kasitch. I know what happened
at Club Zero. That he shot and killed Jude Royce. Everyone fits into this except for you. Meaning
there's sth dirty about him?
1. We often shorten the phrase.
2. Not sure about the context. Perhaps: everyone but you knows about this (or even has a hand in it).
Well he tells him that everything fits because he found an article
about the club and the murder but they show only the title - 'Death at Club Zero'.