Guess both the identity and the message, using the given hints?

Question

Guess both the identity (name) and the message, below the hints. Good Luck !

Identity

All the hints share the same classification and each hint represent the first letter once solved.

My name is Gregory, and i am a good man.
Extraterrestrials are involved.
Yellow natural liquid.
Oh my god !
Just Chuck Norris testing some stuff.

Message

5+!11@|\|0@|-|41|#@-1!|#3@3

Answer 1

The message is

"Still no Half-life 3" written in 1337, with @ for spaces.

Therefore, the identity is almost certainly

Gabe Newell, or GabeN.

It may of course be someone else, but that seems unlikely. So let's try to torture the clues until they fit.

My name is Gregory, and i am a good man.

Gregory Goodman produced the movie The Gift

Extraterrestrials are involved.

Aliens

Yellow natural liquid.

Bile

Oh my god !

Egads!

Just Chuck Norris testing some stuff.

No testing required, it will work.

Ok, so torturing them yielded a worthless confession with no particular "classification". The Geneva convention may have been onto something.