Like many, he drank too much and failed to beat the (favorable) odds of making it home without an incident.  

Alas, everything has a price...including human life.  Don't kid yourself.  Insurance will eventually make dependents and  loved ones "whole".  

If he has no priors, the lynching, holier-than-thou posters are calling for, should be reduced to counseling and a "reasonable" incarceration.  Pretty sure remorse is eating him alive.  I'd much rather have him back as a productive member of society than wasting away in prison.