Jury selected. Six men. Six women. Opening statements were completed this morning.
I really have no idea this works, but I think the jury will be asked whether two construction companies were negligent and, if so, did that negligence "proximately cause" the collision. If so, then the jury will allocate a percentage of fault between the drunken driver and the company(ies).
This trial is supposed to take two weeks. (And the courtroom has more onlookers than any case, civil or criminal, has seen in the last 18 years or so --- at least before the Sharon Green case.)