Yep..Dave Cullen had it right

Yep..Dylan was obviously a Schizo and Eric a maniplative Psychopath.

A: Dylan shares similar facial characteristics and symptoms with his fellow delusional killer..Patrick Bateman.

They are prone to crazy outbursts of extreme anger,distorted perception of reality,and their faces just scream...

WHAT U LOOKING AT?! I'LL TEAR YOUR F****ING FACE OFF,EAT IT,AND THEN SHIT IT OUT!

B: Eric shares the Cold and Calculating demeanor of a Pshychopath with fellow madman Charles Manson.

The crazy eyed stare lets the receiver know quickly that they have royally screwed up.And that the charming Psychopath's non ending grudge will soon see them end up Dead.

To me the stare and facial expressions say something like.....

"Lol..Just as planned.You have played right into my master design,you insignificant' ant"

HaHa..hope you enjoyed my Joke diagnosis guys,and didn't take anything here TOO seriously