Spiritualism

1.  Mobster & mass murderer Louis Lepke Buchalter was so disgusted with his own existence that he went and sat on the electric chair himself to get executed.

2.  

Mobster Alcapone’s guilt gnawed at his psyche so much that after spending years in a maximum security prison, he contracted syphilis, went mad and died a broken man in his Florida mansion.

3.  

Mobster Frank Nitty got so disgusted with himself that he committed suicide.