Real prison pictures of real criminals

The pictures are the real thing, no photoshop, no editing, just talent:

Within yourself deliverance must be searched for, because each man makes his own prison.

Sir Edwin Arnold. (1832–1904)

In prison, those things withheld from and denied to the prisoner become precisely what he wants most of all.

Eldridge Cleaver

Unfortunately I don't remember the source :(, still the artist is Romanian and the inmates are Romanians.