Tort law question helpWatch
What is this question about? I thought it was about vicarious liability (Steve), Battery (Jacob), False imprisonment, and negligence of Steve - crushing his skull and killing him. Please help.
You're missing whether or not Adam consented to being imprisoned. This affects whether or not he was falsely imprisoned. It might also serve as volenti non fit injuria, taking upon the risk himself, for the torts relating to his being attacked and being stepped on.
You should also consider whether as a practical matter you could sue, considering trespass against the person in this case is extreme and would likely be dealt with criminally. The vicarious liability would likely not be, though corp homicide and manslaughter do exist (though probably not applicable here). I would provide some authority for Adam's wife being able to sue in Adam's place.
Remember, just because there is little point to suing for battery against Jacob does not mean you should not talk about the underlying liability of Jacob for the acts; same for corp manslaughter and the wife's being able to sue. These issues are for the end of your PQ response where you consider remedies.