c.s.i.

horatio (showing a 9.mm gun wrapped in a transparent plastic bag): do you recognize this gun, mr. callahan?

callahan: y-yes, that's my gun, i recognize it.

horatio: and you're aware that this was the murder weapon? the weapon who killed that girl in your living room?

callahan: yes, but it wasn't me.

horatio: and where were you in that night, when she was shot?

callahan: at home, watching television.

horatio: at home, watching television. so you're trying to convince me, mr. callahan, that you were at home, watching television, while a girl was murdered in your living room with your gun and it wasn't you?

callahan: yes. it wasn't me. i'm innocent.

horatio: and you don't know who did it?

callahan: no, i don't. and i say it again, i'm innocent.

horatio: you might be. yet the evidence tells a different story.

(mind you, this is pure fiction)