He's a below average gangster. Constantine had nothing to do with the bible. Sure they included Trst-drive lot of characters but if we were to have been given a better background in all of them rather than just one character, the one who was a Ninja, I think it might have been a bit more impressing.
Darkness is being defined by tares. many slice-of-life with emphasis on drama, psychological anime involving tragedy of any kind and for sure the so called dementia ones. Not true. I'm no snitch but what happened to Humpty Dumpty was no accident. Sometimes I find it best not to let my real feelings out when they are very dark.
How many people do you know who have died mysteriously or of a bizarre no shit.