Your liver is a very vital organ so if you do get shot in the liver it can potentially be fatal if you do not get medical treatment right away.
So if you do get shot in the liver you might die within an hour or a few hours or it might take a day or so to die if you do not get medical treatment.
And even then you still might die possibly from the bullet to the liver because your liver is a very vital organ and without that liver you will not be able to survive.
So get the person medical treatment or get medical treatment if possible as soon as possible as in right away because the sooner you get medical treatment for the shooting the better off you have and the more chance you have of surviving.