Psalm 51:14 Deliver me from bloodguiltiness, O God, thou God of my salvation: and my tongue shall sing aloud of thy righteousness.
Bloodguiltiness is a rare word and biblical noun. that appears only once in the King James Bible. The verse (cited at top) is in the middle of one of the most prominent whole chapters dealing with sin and grievous sin. This insightful word is defined by Merriam-Webster as "guilt resulting from bloodshed" .
The Godfather trilogy deals with themes of blood guilt, and 3rd and 4th generational sin. Good counsel for Godfather 4 would be that they should continue leaving the bloodguiltiness business and continue building on the work of the dream of the previous 2 generational bosses, going all in with the pivot toward international business and private security. Blood guilt and lawlessness are a good way to lose everything.