Detective Leonard Carter investigates an explosion

The Forensics boys have examined the scene of the explosion and we think the blast originated from this area.

What gives you that Idea?

This big-ass crater

Ok, and where did the blast Originate from?

Uh. I Just said. Right here.

What is?

The Origin of the blast.

I See. So can you pin-point exactly where the blast originated from?

You're standing on it!!

On what?

How about I chalk a big white cross on the ground where the blast originated from? Then we wont forget where it is. Ok?

That’s a great Idea! And after that you can tell me where the blast originated from.

Aaaarrgghh!!

I can see you’re a busy man Lewis. I just have one more question for you.

Is it about the Origin of the blast?!

No!

Ok go ahead.

What does this big white cross mean?