Can I sue for wrongful death, gross negligence or what claim? And is this criminal?

My son died in a fatal single car crash after leaving a bar. Witness said he was drunk at 8:30, continued to over serve till 11:30p.m. Bartender said he was asking for help with a ride home. No one helped. This would of been avoided if bartender took his keys & arranged ride home. Dosent the bar have a statutory duty of care to help & make sure patron has a safe way home? Especially when patron asks for help? Bartender also said he hesitated to leave, walking in & out of bar, he did not want to drive! The bar was only worried @ money, not the safety of patrons. If it's illegal to drive drunk, why do need have parking lots cuz you can't even walk home without getting arrested for public intox. Shouldn't hard makeing all the $ be responsible for patrons safe way out? Wouldn't this be a criminal act of the bar?