Luka Mangotta and Satanism without Satan.

The Satanism of Anton S. Lavey is a materialist atheist, you do not believe in the existence of the supernatural. 
Luka is the trap that the society opens under the defenseless people. 
Luka is anger against injustice. 
The Satanism of Lavey is indeed a place of despair. 

It has nothing to do with the solid construction of the thought of  Michael A. Aquino. 
But, please do not believe that Michael A.Aquino (and its relationship with SET), is the TOS.
Luka was fascinated by annihilation (plastic surgery without limit is exactly that). Of himself. 
This shows the level of despair in which he struggled for years.