If your child was killed in this situation would you not do everything you could to place fault on and be compensated by the sources you felt were ethically responsible?
Something tells me the parents understand it this way: Alcohol doesn't just effect judgement , it makes you want sex and drugs and passionate things like laughing hard with friends, fighting or making big fires. Our son was served beyond what he legally should have been according X law (If you live in a state with a servers permit licensing and education system you know how liable the owner can be), which caused a severe problem in judgement leading to illegal drug use and driving, however if the vehicle our son crashed in to would have been properly made visible according to X law, he would have had better chance to live.
We weren't there and it's probably ultimately his fault, but we don't know, so this bashing of a dead man's father and family seems a little out of line.
My question is, when do they sue the cell phone company for allowing his phone to operate in a vehicle.